Hormones have the following features:I. Adenohypophysis produces gonadotropins.II. Besides sex cells , hormones are also produced by testis and ovary.III. Testosterone is produced by Leydig cells.IV. Estrogen is produced by ovary.Which of the above factors influence secondary sexual characters

1.  III and IV

2.  II, III, and IV

3.  II and IV

4.  All

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4
Correct Answer :

All


Explanation :
No Explanation available for this question

Identify the correct pair of birds with a raft-like keel and lacking preen gland and syrynx

1.  Tinamus an Apteryx

2.  Rhea and Dromeous

3.  Casuaris and struthio

4.  Kiwi and Rhea

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4
Correct Answer :

Casuaris and struthio


Explanation :
No Explanation available for this question

Note the following:(I) Dentition is heterodont(II) Canlnes are poorly developed (III) Incisors are chisel like and poorly developed(IV) Herbivorous and diastema is present(V) The dental formula is i2/1, C%, pm 3/2, m 3/3Which of the above are true for orycotolagus

1.  I, II, IV

2.  I, IV, V

3.  I, II, IV, V

4.  III, IV, V

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4
Correct Answer :

I, IV, V


Explanation :
No Explanation available for this question

Release of vasoactive mediators during hypersensitivity is associated with

1.  Type I

2.  Type II

3.  Type III

4.  Type IV

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4
Correct Answer :

Type I


Explanation :
No Explanation available for this question

A bald headed (Bb) man marries a non-bald woman (Bb), their progeny if all are females, the probable bald to non-bald ratio in their progeny would be

1.  1:1

2.  3:1

3.  1:3

4.  2:1

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4
Correct Answer :

1:3


Explanation :
No Explanation available for this question

The total number of progeny obtained from a dihybrid cross is 1280 in F2  generation. How many of them are recombinant

1.  240

2.  360

3.  480

4.  720

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4
Correct Answer :

480


Explanation :
No Explanation available for this question

If the blood group of a child is 'A' and that its mother's is 'B', then the genotype of mother and father may be

1.  BB x AA

2.  AB x AB

3.  BO x OO

4.  BO x AO

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4
Correct Answer :

BO x AO


Explanation :
No Explanation available for this question

In a population of 278, if observed number of 'MM', 'MN' and 'NN' blood groups is 78, 138 and 62 respectively, what would be the frequency of 'M'

1.  0.532

2.  0.499

3.  0.468

4.  0.283

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4
Correct Answer :

0.532


Explanation :
No Explanation available for this question

Identify the correct chronological sequence periods of Mesozoic era

1.  Carboniferous → Permian → Triassic → Jurassic → Cretaceous

2.  Cretaceous→ Permian →Jurassic→ Carboniferous→ Triassic

3.  Cretaceous → Carboniferous →Permian →Triassic →Jurassic

4.  Carboniferous →Jurassic →Permian →Triassic →Cretaceous

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4
Correct Answer :

Carboniferous → Permian → Triassic → Jurassic → Cretaceous


Explanation :
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The juice containing sodium glycocholate is released under the influence of

1.  Secretin

2.  Cholecystokinin

3.  Enterogastron

4.  Enterokinin

View Answer  
4
Correct Answer :

Cholecystokinin


Explanation :
No Explanation available for this question
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