NEET : Multiple Choice questions: Sex Determination in insect, Birds, Human and Honeybee

1. Who of the following discovered X body when he was working on spermatogenesis of insect
A. Henking.  B. Carens

C. Bateson.  D. Layman

Answer : A Explanation 

2. Which of the following was not observation  of Henking working on spermatogenesis of insect
 A. 50 % male gamete of insect do not have nuclear body.

B. 50 % male gamete of insect  have nuclear body.

C. He could not explain the significance of nuclear body present in male gamete.

 D. He named X chromosome for   this nuclear body.

Answer : D  Explanation

3. Which of the following term has been used by Henking for nuclear body that was observed in 50 % of male gamete of insect.

A. X gene                   B.  X Body

C. X chromosome D. X allele

Answer : B Explanation

4. Which of the following type of sex determination is found in Insect.

A. XX -  XY type

B. XX - XO type

C. ZZ - ZW type

D. ZZ - XY type

Answer: B Explanation

5. Which of the following statement is correct for  sex determination  in Insect.

A. Male is heterogametic be cause it produces two diffrent type of gametes.

B. Female is homogametic be cause it produces similar  type of gametes.

C. At fertilisation, female is formed if zygote contain XO Chromosome.

D. XX - XO type of sex determination is found in Grasshopper.

Answer:  C Explanation

6. In Which of the following organism  female is heterogamety because  it  produces two different types of gametes.

A. Bird              B. Fish

C. Human        D. Fruit fly

Answer: A Explanation

7.Which of the following option is not correct.

                  Male      Female 

A.  Birds.      ZZ          ZW

B. Human    XY           XX

C. Fruit fly    XY           XX

D. Insect.     ZZ           ZW

Answer : D Explanation

8.Match the List

A. Grasshopper  1.ZZ - ZW

B. Drosophila     2.XX - XY

C. Birds.             3.XX - XO

D.Honey bee   4.Haplodiploid

          A     B      C      D

A.       3     2      1       4

B.       3     1      2       4

C.       4     2      1       3

D.       4     1      2       3

Answer : A Explanation

9.In honey bee , Parthenogenesis refer the development of which of the following member without fertilisation.

A. Drones

B. Queen 

C. Female

D. Worker

Answer: A Explanation

10.In honey bee , Sex determination is haplo diploid This statement justify

A. Development of Droned from unfertilized egg of female.

B. Development of sterile worker and develop by the fusion of  male  female gamete.

C. Drone is haploid and produced gamete by mitosis and Queen is diploid and produced gamete by meiosis.

D.Development of queen after the feeding of Royal jelly

Answer: C Explanation

10.In honey bee , number of chromosome in drone or  male  and Queen or female respectively are 

A. 16 and 16

B. 32 and 32

C. 16 and 32

D. 32 and 16

Answer: C Explanation

11.In honey bee , drone   and Queen form gamete  respectively by the  

A. Mitosis and Meiosis 

B. Mitosis and Mitosis

C. Meiosis and Meiosis

D. Meiosis and Mitosis

Answer: A Explanation

12. In honey bee , Which of the following is sterile female 

A. Worker

B. Drone 

C. Queen 

D. None of the above 

Answer: A Explanation

13. Consider the following statement and select the correct code 

1.During the fertilization, female Honey bee is produced after the fusion of gamete of male   and female.

2.Unfertilized gamete of female honey bee  is directly developed into Drone.

A. Only 1

B. Only 2

C. Both 1 and 2

D. Neither 1 not 2

Answer: C Explanation