Reproduction in Animals

Reproduction in Animals Worksheet-1

1. Which of the following statements is/are true/false?

(i) Oviparous animals give birth to young ones.

(ii) External fertilization takes place in frog.

(iii) An embryo is made up of a single cell.

(iv) A new human individual develops from a cell called gamete.

(v) Amoeba reproduces by binary fission.

(vi) A zygote is formed as a result of fertilization.

(a) (i), (iii) &(iv) are false, (ii), (v) & (vi) are true

(b) (i) & (iii) are false, (ii), (iv), (v)& (vi) are true

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.

2. 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.

Reproduction in Animals Worksheet-3

1. A woman receives her X chromosomes from

(a) Her mother only

(b) Her father only

(c) Both her mother and her father

(d) Extranuclear DNA in her mothers egg.

2. What will happen if Hydra is broken into pieces?

Given below are certain conditions. Which among them is/are correct?

(i) It will die.

(ii) It will undergo sexual reproduction.

(iii) Some fragments will form complete Hydra.