SERICULTURE- NOTES-PAGE 2
Sericulture Notes- Page 2
1.Use of SSP (Single super phosphate) is advantageous over gypsum in Farm Yard
Manure (FYM) preservation
Reducing the loss of nitrogen
2. The tillage in which primary tillage is completely avoided and secondary tillage is
restricted to seed sowing
Zero tillage
3. Share of Agriculture in total GDP in India is
15%
4.Soils of Andhra Pradesh are mostly found with the deficiency of which
micronutrient
Zinc
5.The highest percentage area under high yielding varieties is in the following crop in India
Rice
6. The state which is having more area under semi-arid region is
Maharashtra
7. Which is the quality protein maize hybrid or composite released in India?
Shakti-1
8. Presently the cropping intensity of Andhra Pradesh is
126%
9. Which of the following intercropping system is most popular in Rayalseema of Andhra Pradesh?
Groundnut + Pigeonpea
10. Major cropping system followed in Godavari command area of Andhra Pradesh is
Rice—Rice
11. Total depth of water application for a crop with base period of 110 days is 80 cm what is the duty of water?
1188 ha/cumec
12. Soil moisture content in effective root zone depth before the crop is irrigated will be
Less than FC-PWP
13. Infrared balance method is used to measure
Gravimetric water content
14. The formulae given by Blaney-Criddle for estimation of potential evapotranspiration (PET) is
ET0= [p (0.46T + 8)]
15. The commonly used pan co-efficient value is
0.7
16. The climatologically approach for scheduling of irrigation is
IW/CPE approach
17. Gross amount of water applied in a field is 10.0 cm. Application loss and other losses in the field are 3.0 cm. Conveyance loss in the channel is 1.0 cm. Irrigation efficiency at field level will be
70%
18. The formula Q=0.0138 x H 5/2 is used for measuring discharge of water through
V-notch
19. If irrigation water is available for two irrigations, it should be applied to Wheat crop at
CRI and late jointing
20. Most critical stage for soil moisture in cotton crop is
Squaring to peak flowering
21. The drainage co-efficient helps to determine
Drain size
22.Which of the following weeds cause asployxia in animals due to high nitrate levels in dry lands?
Chenopodium album
23. The herbicide used for chemical ploughing is
Paraquat
24. Which nozzle is usually recommended for herbicide application to crops?
Flat fan
25. The botanical agent for suppressing the growth of parthanium weed is
Cassia sericea
26. The weed seeds that have similar shape and size as that of crops seeds are called as
Satellite weeds
27. The formulation of the commonly used herbicide atrazine is
WP (Wettable powder)
28. Crop associated weed in lucerne crop is
Cichorium intybus
29. Weed of wild community origin, escaping some times to crop lands is called as
Facultative weed
30.Pistia stratiotes is a _____ aquatic weed.
Floating
31. Foliage active translocative herbicides generally move through __________.
Symplast
32. Plants’ non-heritable morphological adaptation to environmental stresses is known as
Ecophene
33. The crop, which is used as an indicator plant for bioassay of atrazine is
Soybean
34. Suicidal mechanism in Striga seeds is induced due to which hormone?
Ethylene
35. Sesquioxides are mainly found in which group of soils in Andhra Pradesh
Laterite and Lateritic Soils
36. in acid soil phosphorus fixation found with _____ element
Fe – P
37. pH of acid sulphate soil is __________
< 4.00
38. Which is salt tolerant crop
Barley
39. If the soil is having pH 5.0, what is its OH- ion concentration
9
40. Which of the following is a facultative anaerobic bacterium
Azotobector
41. Phloem consists of
4 cell types
42. Cell theory is put forth by
Schwann and Schleiden
43. Tonoplast encloses
Vacoule
44. Peak Absorption of Chlorophyll b
453 and 642 nm
45. Peak Absorption of Chlorophyll a
430 and 662 nm
46. Non invasive method of measuring chlorophyll content
SPAD meter
48. Discovery of two light harvesting complex in plants enabled by
Red drop and Emerson Enhancement effect
49. Plastocyanin is a protein containing
Cu
50. Calvin cycle or C3 cycle is also called as
Reductive Pentose Phosphate pathway
51. Enzyme RuBISCO has
both Carborxylase activity and Oxygensae activity
52. RuBISCO has greater affinity for
CO2
53. Photorespiratory substrates are
RuBP and O2
54. ATP generated during glycolysis is by
Substrate level Phosphorylation
55. A molecule of Pyruvate entering TCA cycle yields
3CO2 + 4 NADH + 1 ATP + 1FADH2
56. NCED is one of the enzyme involved in
ABA biosynthesis
57. Avena curvature bioassay is to quantify
Auxin
58. Hormone which induces alpha amylase and facilitates germination
GA
59. Stomatal closure is induced by
ABA
61. Plant growth regulator involved in host pathogen interaction
JA
62. Steroid hormone
Brassinolide
63. Dry heat is used to sterilize glassware at the temperature of
170 deg C
64. Temperature and pressure maintained in autoclave
121 degree C & 15 lb
65. High efficiency particulate air filters are present in
LAF
66. ---------- is the most active cytokinin
2ip
67. Thomas etal reported production of triploid plants through endosperm culture in
Mulberry
68. Re-formation of the nuclear envelope event
Telophase
69. Globular and Torpedo stages of Embryo shows increased content of
Glutamine and Arginine
70. Gelrite consists of a polysaccharide produced by the Bacterium
Pseudomonas Elodae
71. Bacterial promoters have 2 major recognition sites -10 and -35 reign of which-35 has
got fallowing consensus sequence
TTGACA
72. In transcription the DNA stands used by RNA polymerase is called
Antisense
73. Operon refers to
Clusters of Genes that share the same promotor
74. In Eukaryotes the important RNA polymerase which Transcribes the gene that encodes proteins
RNA polymers II
75. Shine Dalgarno Sequence is present in
Prokaryotic mRNA
Manure (FYM) preservation
Reducing the loss of nitrogen
2. The tillage in which primary tillage is completely avoided and secondary tillage is
restricted to seed sowing
Zero tillage
3. Share of Agriculture in total GDP in India is
15%
4.Soils of Andhra Pradesh are mostly found with the deficiency of which
micronutrient
Zinc
5.The highest percentage area under high yielding varieties is in the following crop in India
Rice
6. The state which is having more area under semi-arid region is
Maharashtra
7. Which is the quality protein maize hybrid or composite released in India?
Shakti-1
8. Presently the cropping intensity of Andhra Pradesh is
126%
9. Which of the following intercropping system is most popular in Rayalseema of Andhra Pradesh?
Groundnut + Pigeonpea
10. Major cropping system followed in Godavari command area of Andhra Pradesh is
Rice—Rice
11. Total depth of water application for a crop with base period of 110 days is 80 cm what is the duty of water?
1188 ha/cumec
12. Soil moisture content in effective root zone depth before the crop is irrigated will be
Less than FC-PWP
13. Infrared balance method is used to measure
Gravimetric water content
14. The formulae given by Blaney-Criddle for estimation of potential evapotranspiration (PET) is
ET0= [p (0.46T + 8)]
15. The commonly used pan co-efficient value is
0.7
16. The climatologically approach for scheduling of irrigation is
IW/CPE approach
17. Gross amount of water applied in a field is 10.0 cm. Application loss and other losses in the field are 3.0 cm. Conveyance loss in the channel is 1.0 cm. Irrigation efficiency at field level will be
70%
18. The formula Q=0.0138 x H 5/2 is used for measuring discharge of water through
V-notch
19. If irrigation water is available for two irrigations, it should be applied to Wheat crop at
CRI and late jointing
20. Most critical stage for soil moisture in cotton crop is
Squaring to peak flowering
21. The drainage co-efficient helps to determine
Drain size
22.Which of the following weeds cause asployxia in animals due to high nitrate levels in dry lands?
Chenopodium album
23. The herbicide used for chemical ploughing is
Paraquat
24. Which nozzle is usually recommended for herbicide application to crops?
Flat fan
25. The botanical agent for suppressing the growth of parthanium weed is
Cassia sericea
26. The weed seeds that have similar shape and size as that of crops seeds are called as
Satellite weeds
27. The formulation of the commonly used herbicide atrazine is
WP (Wettable powder)
28. Crop associated weed in lucerne crop is
Cichorium intybus
29. Weed of wild community origin, escaping some times to crop lands is called as
Facultative weed
30.Pistia stratiotes is a _____ aquatic weed.
Floating
31. Foliage active translocative herbicides generally move through __________.
Symplast
32. Plants’ non-heritable morphological adaptation to environmental stresses is known as
Ecophene
33. The crop, which is used as an indicator plant for bioassay of atrazine is
Soybean
34. Suicidal mechanism in Striga seeds is induced due to which hormone?
Ethylene
35. Sesquioxides are mainly found in which group of soils in Andhra Pradesh
Laterite and Lateritic Soils
36. in acid soil phosphorus fixation found with _____ element
Fe – P
37. pH of acid sulphate soil is __________
< 4.00
38. Which is salt tolerant crop
Barley
39. If the soil is having pH 5.0, what is its OH- ion concentration
9
40. Which of the following is a facultative anaerobic bacterium
Azotobector
41. Phloem consists of
4 cell types
42. Cell theory is put forth by
Schwann and Schleiden
43. Tonoplast encloses
Vacoule
44. Peak Absorption of Chlorophyll b
453 and 642 nm
45. Peak Absorption of Chlorophyll a
430 and 662 nm
46. Non invasive method of measuring chlorophyll content
SPAD meter
48. Discovery of two light harvesting complex in plants enabled by
Red drop and Emerson Enhancement effect
49. Plastocyanin is a protein containing
Cu
50. Calvin cycle or C3 cycle is also called as
Reductive Pentose Phosphate pathway
51. Enzyme RuBISCO has
both Carborxylase activity and Oxygensae activity
52. RuBISCO has greater affinity for
CO2
53. Photorespiratory substrates are
RuBP and O2
54. ATP generated during glycolysis is by
Substrate level Phosphorylation
55. A molecule of Pyruvate entering TCA cycle yields
3CO2 + 4 NADH + 1 ATP + 1FADH2
56. NCED is one of the enzyme involved in
ABA biosynthesis
57. Avena curvature bioassay is to quantify
Auxin
58. Hormone which induces alpha amylase and facilitates germination
GA
59. Stomatal closure is induced by
ABA
61. Plant growth regulator involved in host pathogen interaction
JA
62. Steroid hormone
Brassinolide
63. Dry heat is used to sterilize glassware at the temperature of
170 deg C
64. Temperature and pressure maintained in autoclave
121 degree C & 15 lb
65. High efficiency particulate air filters are present in
LAF
66. ---------- is the most active cytokinin
2ip
67. Thomas etal reported production of triploid plants through endosperm culture in
Mulberry
68. Re-formation of the nuclear envelope event
Telophase
69. Globular and Torpedo stages of Embryo shows increased content of
Glutamine and Arginine
70. Gelrite consists of a polysaccharide produced by the Bacterium
Pseudomonas Elodae
71. Bacterial promoters have 2 major recognition sites -10 and -35 reign of which-35 has
got fallowing consensus sequence
TTGACA
72. In transcription the DNA stands used by RNA polymerase is called
Antisense
73. Operon refers to
Clusters of Genes that share the same promotor
74. In Eukaryotes the important RNA polymerase which Transcribes the gene that encodes proteins
RNA polymers II
75. Shine Dalgarno Sequence is present in
Prokaryotic mRNA
76. The major bases of Sphigolipids in higher plants
Phytosphingosine
77. Examples for Negatively charged amino acid
Glutamic acid
78. The non amine acid portion of a conjugated proteins is called
Prosthetic group
79. Pyruate dehydrogenase is used in converting
Pytuvate to acetyl-CoA
80. The Squalene (Triterpenes) an important precursor in the Biosynthesis of
Cholesterol
81. Haworth ring structure of glucose is chemically
Hemiacetal
82. In raw sewage the estimated level of fecal coliforms as indicator organisms will be
106-107 cfu per 100 ml
83. There is strong evidence of the contamination of human origin when the fecal
coliform/fecal streptococci (FC/FS) ratio is
> 4.0
84. In India , as per the central pollution control Board standards, Drinking water source after conventional treatment and disinfection will be placed in _____ class of water and Biochemical Oxygen Demand 5 days 200C will be _________
C and 3mg/l or less
85. The maximum permissible sound pressure level for new diesel generator (DG)sets with rated capacity upto 1000 KVA, manufactured on or after the 1st January, 2005 shall be ____________ at 1 metre from the enclosure surface.
75 dB(A)
86. For Ozone the Who guidelines has prescribed the limits as
100 μg/m3 8-hour mean
87. During the sewage treatment, with high rate activated sludge some _________ percent of the influent BOD will be removed with a hydraulic retention time of approximately two hours
60-70%
88. What will be the recommended limit of application of the sludge to the arable soils over 30 years, if the sludge contains 1000 mgkg-1 Zn, 500 mg Kg-1 Cu and 60mg Kg Ni-1 .The cumulative limit of addition of Zinc to the arable soils through sewage sludge disposal is 560 Kg Ha-1.
225 t ha-1
89. Caesium (Cs)-137, a radioactive isotope which went missing on January 16 from a truck ferrying machinery and tools from an ONGC exploration site near Machilipatnam had a half life of _________ Years
30.17
90. Uranium mining by UCIL in Tummalapalle, Andhra Pradesh has lead to the increase of uranium levels up to _________micrograms per litre, when the United Nations-certified limit for India is 30.
308.5
91. Indian Experimental remote sensing satellite Bhaskara-I and II carried a _______ band TV camera system
2
92. Delineation of the location and spatial extent of surface water is carried out through the sensors operating in the NIR ______
0.75-1.0 µm
93.Following sensors for detection, identification and measurement of aerial extent of water pollution through waste effluent are being used
CIR,TIR
94. The mapping of canal network, surface water bodies, flood areas etc. which play an important role in the assessment of recharge parameters can be done by the
IRSFCC data at 1:50000 and PAN data on 1:12500
95. For Discrimination of coniferous /deciduous vegetation, which spectral range ___________( microns) is being used in remote sensing satellite ?
0.45-0.52
96. M/s Hyderabad Waste Management Project has established Treatment, Storage and Disposal Facility(TSDF) as a part of bilateral aided project between Government of India and Government of _________.
Australia
97. In Tirupathi, sewage treatment plant located at Tukivakam is having a STP installed capacity of _________ MLD
50
98. Under the original Montreal Protocol agreement (1987), developed countries were required to begin phasing out CFCs in __________ and achieve a _________reduction relative to 1986 consumption levels by 1994
1993 and 20%
99. Indian diesel has a sulphur content of ___________ per cent by weight as compare to diesel used in countries like Sweden in which sulphur content is ____________ per cent by weight
0.5 and 0.001
100. Global warming potential of perfluoromethane ( CF4) from the production of Aluminium is __________
6500
101. Out of total incoming solar radiation (118,872 gcal/cm2 /yr), gross production ( net production + respiration) by autotrophs is _________
118 gcal/cm2/yr
102 . Of the total energy incorporated at the herbivores level 15gcal.cm2/yr________________ is used in the metabolic reactions
4.5 gcal/cm2/yr
103. Assume 500 units of energy are produced by trophic level 1. One half of that is lost to nonpredatory death, while the other half (250 units) is ingested by trophic level 2. One half of the amount ingested is expelled through defecation, leaving the other half (125 units) to be
assimilated by the organism. Finally one half of the remaining energy is lost through respiration while the rest ___________is used for growth and reproduction which constitutes to the net production of trophic level 1.
62.5 units
104. The ten percent law of transfer of energy from one trophic level to the next can be
attributed to
Raymond Lindeman
105. On a clear day radiant energy reaching earth’s surface is about ________ percent visible and __________ infrared
45 and 45
106. The southern limit of Arctic tundra follows the northern edge of the coniferous forest belt.
In North America this line lies above latitude ___________, while in Eurasia most of it occurs
north of _________________
60° N and 70° N
107. Where an area of sea separates two plates, sediments settle on the sea floor in
depressions called ______________
Geosynclines
108. Most common caves formed by dissolution of limestone or dolomite are known as :
Solution Caves
109. The place where summer days are 24 hours long and Summer temperatures rarely get
above 10°C. The place falls in _____________ Biome
Tundra
110. ____________are hot, tropical areas with temperatures averaging from 24oC –29oC and
an annual rainfall of 51–127 cm.
Savanna
111.Potato crop needs ____________ mm of water per total growing period
500-700
112. The main type of hemocytes that are responsible for encapsulation of foreign bodies in
silkworm
Plasmatocytes
113. Silkworm relies solely on
Innate immunity
114. The rate of which hormone secretion determines, whether the kidney excretes dilute or
concentrated urine
Both Antidiuretic hormone and Vasopressin
115. Which of the following is/are correct
Both Uric acid serve as an antioxidant in primates and The end product of Purine metabolism
is Uric acid
116. The synthesis of urea occurs in
Liver
117. Which of the following is correct regarding Electrocardiogram
The P wave is caused by spread of depolarization through the atria
118. The rate limiting factor in causing blood coagulation
Formation of Prothrombin activator
119. In sickle cell anemia, the aminoacid valine is substituted for
Glutamic acid
120. Which is/are correct about G protein
Both It acts as a second messenger and It consists of three components alpha,beta
and gamma
121. When the greater amount of light energy striking the rod
Both Greater the electronegativity and High degree of hyperpolarization
122. Important enzyme involved in carbohydrate digestion of Bombexmori
Amylase
123. The most abundant of the absorbed monosaccharide
Glucose
124. The most abundant transport protein in haemolymph of Bombyxmori
Lipoprotein
125. The silk gland of Bombyx mori is
Exocrine gland
126. The pheromone secreted by female silkworm moth to attract mates
Bombykol
127. The parathyroid gland contain a single,basic type of secretory cell
Chief cell
128. The sex of the silkworm, Bombyx mori, is strongly controlled by the presence of the
W chromosome
129. A sperm storage organ in female Bombyxmori is
Seminal receptacle
130. The fusion of the male and female pronuclei
Both Synkaryon and Zygote nucleus
131. The Catecholamines are synthesized from
Tyrosine
132. The multiple changes that activate the sperm for the final process of fertilization in female genital tract is called
Capacitation
133. The key regulator of the metaphase to anaphase transition is
Cyclosome (APC/C)
Phytosphingosine
77. Examples for Negatively charged amino acid
Glutamic acid
78. The non amine acid portion of a conjugated proteins is called
Prosthetic group
79. Pyruate dehydrogenase is used in converting
Pytuvate to acetyl-CoA
80. The Squalene (Triterpenes) an important precursor in the Biosynthesis of
Cholesterol
81. Haworth ring structure of glucose is chemically
Hemiacetal
82. In raw sewage the estimated level of fecal coliforms as indicator organisms will be
106-107 cfu per 100 ml
83. There is strong evidence of the contamination of human origin when the fecal
coliform/fecal streptococci (FC/FS) ratio is
> 4.0
84. In India , as per the central pollution control Board standards, Drinking water source after conventional treatment and disinfection will be placed in _____ class of water and Biochemical Oxygen Demand 5 days 200C will be _________
C and 3mg/l or less
85. The maximum permissible sound pressure level for new diesel generator (DG)sets with rated capacity upto 1000 KVA, manufactured on or after the 1st January, 2005 shall be ____________ at 1 metre from the enclosure surface.
75 dB(A)
86. For Ozone the Who guidelines has prescribed the limits as
100 μg/m3 8-hour mean
87. During the sewage treatment, with high rate activated sludge some _________ percent of the influent BOD will be removed with a hydraulic retention time of approximately two hours
60-70%
88. What will be the recommended limit of application of the sludge to the arable soils over 30 years, if the sludge contains 1000 mgkg-1 Zn, 500 mg Kg-1 Cu and 60mg Kg Ni-1 .The cumulative limit of addition of Zinc to the arable soils through sewage sludge disposal is 560 Kg Ha-1.
225 t ha-1
89. Caesium (Cs)-137, a radioactive isotope which went missing on January 16 from a truck ferrying machinery and tools from an ONGC exploration site near Machilipatnam had a half life of _________ Years
30.17
90. Uranium mining by UCIL in Tummalapalle, Andhra Pradesh has lead to the increase of uranium levels up to _________micrograms per litre, when the United Nations-certified limit for India is 30.
308.5
91. Indian Experimental remote sensing satellite Bhaskara-I and II carried a _______ band TV camera system
2
92. Delineation of the location and spatial extent of surface water is carried out through the sensors operating in the NIR ______
0.75-1.0 µm
93.Following sensors for detection, identification and measurement of aerial extent of water pollution through waste effluent are being used
CIR,TIR
94. The mapping of canal network, surface water bodies, flood areas etc. which play an important role in the assessment of recharge parameters can be done by the
IRSFCC data at 1:50000 and PAN data on 1:12500
95. For Discrimination of coniferous /deciduous vegetation, which spectral range ___________( microns) is being used in remote sensing satellite ?
0.45-0.52
96. M/s Hyderabad Waste Management Project has established Treatment, Storage and Disposal Facility(TSDF) as a part of bilateral aided project between Government of India and Government of _________.
Australia
97. In Tirupathi, sewage treatment plant located at Tukivakam is having a STP installed capacity of _________ MLD
50
98. Under the original Montreal Protocol agreement (1987), developed countries were required to begin phasing out CFCs in __________ and achieve a _________reduction relative to 1986 consumption levels by 1994
1993 and 20%
99. Indian diesel has a sulphur content of ___________ per cent by weight as compare to diesel used in countries like Sweden in which sulphur content is ____________ per cent by weight
0.5 and 0.001
100. Global warming potential of perfluoromethane ( CF4) from the production of Aluminium is __________
6500
101. Out of total incoming solar radiation (118,872 gcal/cm2 /yr), gross production ( net production + respiration) by autotrophs is _________
118 gcal/cm2/yr
102 . Of the total energy incorporated at the herbivores level 15gcal.cm2/yr________________ is used in the metabolic reactions
4.5 gcal/cm2/yr
103. Assume 500 units of energy are produced by trophic level 1. One half of that is lost to nonpredatory death, while the other half (250 units) is ingested by trophic level 2. One half of the amount ingested is expelled through defecation, leaving the other half (125 units) to be
assimilated by the organism. Finally one half of the remaining energy is lost through respiration while the rest ___________is used for growth and reproduction which constitutes to the net production of trophic level 1.
62.5 units
104. The ten percent law of transfer of energy from one trophic level to the next can be
attributed to
Raymond Lindeman
105. On a clear day radiant energy reaching earth’s surface is about ________ percent visible and __________ infrared
45 and 45
106. The southern limit of Arctic tundra follows the northern edge of the coniferous forest belt.
In North America this line lies above latitude ___________, while in Eurasia most of it occurs
north of _________________
60° N and 70° N
107. Where an area of sea separates two plates, sediments settle on the sea floor in
depressions called ______________
Geosynclines
108. Most common caves formed by dissolution of limestone or dolomite are known as :
Solution Caves
109. The place where summer days are 24 hours long and Summer temperatures rarely get
above 10°C. The place falls in _____________ Biome
Tundra
110. ____________are hot, tropical areas with temperatures averaging from 24oC –29oC and
an annual rainfall of 51–127 cm.
Savanna
111.Potato crop needs ____________ mm of water per total growing period
500-700
112. The main type of hemocytes that are responsible for encapsulation of foreign bodies in
silkworm
Plasmatocytes
113. Silkworm relies solely on
Innate immunity
114. The rate of which hormone secretion determines, whether the kidney excretes dilute or
concentrated urine
Both Antidiuretic hormone and Vasopressin
115. Which of the following is/are correct
Both Uric acid serve as an antioxidant in primates and The end product of Purine metabolism
is Uric acid
116. The synthesis of urea occurs in
Liver
117. Which of the following is correct regarding Electrocardiogram
The P wave is caused by spread of depolarization through the atria
118. The rate limiting factor in causing blood coagulation
Formation of Prothrombin activator
119. In sickle cell anemia, the aminoacid valine is substituted for
Glutamic acid
120. Which is/are correct about G protein
Both It acts as a second messenger and It consists of three components alpha,beta
and gamma
121. When the greater amount of light energy striking the rod
Both Greater the electronegativity and High degree of hyperpolarization
122. Important enzyme involved in carbohydrate digestion of Bombexmori
Amylase
123. The most abundant of the absorbed monosaccharide
Glucose
124. The most abundant transport protein in haemolymph of Bombyxmori
Lipoprotein
125. The silk gland of Bombyx mori is
Exocrine gland
126. The pheromone secreted by female silkworm moth to attract mates
Bombykol
127. The parathyroid gland contain a single,basic type of secretory cell
Chief cell
128. The sex of the silkworm, Bombyx mori, is strongly controlled by the presence of the
W chromosome
129. A sperm storage organ in female Bombyxmori is
Seminal receptacle
130. The fusion of the male and female pronuclei
Both Synkaryon and Zygote nucleus
131. The Catecholamines are synthesized from
Tyrosine
132. The multiple changes that activate the sperm for the final process of fertilization in female genital tract is called
Capacitation
133. The key regulator of the metaphase to anaphase transition is
Cyclosome (APC/C)