Seasonal Breeders

Q. In mammals that are seasonal breeders, females are receptive only once a year. This is called

1. Follicular cycle
2. Luteal cycle
3. oestrous cycle
4. Menstrual cycle

Q. Choose the correct statement/statements from the following statements.
I) Cyclical changes that occur during reproduction in primates is called the menstrual cycle.
II) Bamboo species flower only once in their lifetime, generally after 50-100 years, produce large numbers of fruits and die.
III) Many mammals, especially those living in natural, wild conditions exhibit oestrus cycle only during favourable seasons in their reproductive phase and are called continuous breeders.
IV) During the reproductive phase, there are concomitant changes in the body like slowing of metabolism.

1. I and II are correct
2. II and IV are correct
3. I, III and IV are correct
4. III and IV are correct

Q. Organisms that show cyclical changes during favourable seasons in their reproductive phase are called ____________.

1. continuous breeders
2. biennials
3. Both a and b
4. seasonal breeders

Q. Match the following (column 1 with column 2 )
$\begin{array}{cc}\text{Column 1}& \text{Column 2}\\ \text{p. Monkey}& \text{1. Seasonal breeder}\\ \text{q. Bamboo}& \text{2. Annual plant}\\ \text{r. Sheep}& \text{3. Perennial plant}\\ \text{s. Wheat}& \text{4. Continuous breeder}\end{array}$

1. p-3, q-2, r-4, s-1
2. p-4, q- 3, r- 1, s-2
3. p-2, q-1, r-4, s-3
4. p-1, q-4, r-3, s-2

Q. Sexual maturity of House Mouse is attained at the age of

1. 35 days
2. 75 days
3. 15 days
4. 45 days

Q. Dog is a

1. Seasonal breeder
2. Continuous breeder
3. Monoestrus
4. Polyoestrus

Q. In which of the following organism, testes descends into scrotum in breeding season but in non-breeding season goes up?

1. Frog
2. Kangaroo
3. Shrew
4. Bat

Q. Assertion :The honeybee queen copulates only once in her life time. Reason: The honeybee queen can lay fertilized as well as unfertilized eggs.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. When members of a population attain sexual maturity at different times preventing interbreeding, it is termed as ________ isolation

1. Seasonal
2. Mechanical
3. Habitat
4. Ethological

Q. Monoestrous animals have

1. One ovulation each month
2. One reproductive cycle in a year
3. One menses each month
4. One egg