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Reproduction in Animals Worksheet-2

Reproduction in Animals Worksheet-2

 

  1. Amniocentesis is a process to

(a) Determine any disease in the heart

(b) Know about diseases of brain

(c) Determine any hereditary disease in the embryo

(d) All of these.

 

  1. In honey bee the drones (males) are produced from

(a) Unfertilized eggs

(b) Fertilized eggs

(c) Larvae from unfertilized eggs, which are fed on royal jelly

(d) Larvae from unfertilized eggs, which are not cared by the workers at all.

 

  1. Which of the following is true about adolescence?

(a) It begins around the age of 11 and lasts upto 18 or 19 years of age

(b) It starts at the end of puberty and ends at the beginning of adulthood

(c) It is synonym with puberty

(d) It is post puberty period when external sex characters appear.

 

  1. Broilers can be defined as

(a) Egg laying females

(b) Birds raised for breeding

(c) Young birds reared for meat

(d) Birds raised for both eggs and meat.

 

  1. Which of the following is/are correct?

(i) Every sperm has one sex chromosome.

(ii) All parts of the body grow at the same rate during adolescence.

(iii) Hormones act wherever they are released by the glands.

(iv) Pituitary is called the master gland.

(a) (i) & (ii)       (b) (iii) & (iv)    (c) (i) & (iv)       (d) (ii) & (iv)

 

  1. Which of the following is correct about the part labelled X?

(a) It gives protection to the penis

(b) It is intermediate structure between sperm duct and penis

(c) It is a narrow duct that helps in passage of urine

(d) It is a narrow duct that helps in passage of urine and sperm both.

 

  1. Which of the following is/are true/false regarding female reproductive cycle?

(i) First menstrual cycle is called menarche.

(ii) Menopause occurs in the female at the age of 45-50 years.

(iii) Vagina of female reproductive system is primary sex organ.

(iv) Breast is the accessory sex character.

(a) (i), (ii)& (iii) are true; (iv) is false

(b) (i), (ii) & (iv) are true; (iii) is false

(c) (ii), (iii) &(iv) are true; (i) is false

(d) (i) & (ii) are true; (iii) is false.

 

  1. The sex-determination system in which males are XY and females are XX is found in all

(a) Multicellular organisms       (b) Animals

(c) Vertebrates                              (d) Mammals

 

  1. Complete the following paragraph selecting the correct sequence of words from options given below.

Thyroxine controls ______ in frogs and the development of ______ and ______ during embryonic development of other vertebrates. In an adult endotherm, it controls ______.

(a) Development, circulatory system, muscles, basal metabolic rate

(b) Metamorphosis, circulatory system, muscles, breathing rate

(c) Development, bones, nervous system, breathing rate

(d) Metamorphosis, bones, nervous system, basal metabolic rate.

 

  1. Select the incorrect statement regarding AIDS.

(a) It is an immunodeficiency disease

(b) HIV virus has RNA as its genetic material

(c) AIDS can be transmitted to an infant from the infected mother through her milk

(d) The time-lag between the infection and appearance of AIDS symptoms may vary from week to month.

 

Answer Key:

(1)-(c); (2)-(a); (3)-(a); (4)-(c); (5)-(c); (6)-(d); (7)-(b); (8)-(d); (9)-(d); (10)-(d)