Home
Class 12
BIOLOGY
Assertion :- Inbreeding depression can b...

Assertion :- Inbreeding depression can be over come by mating of selected animals of the bread with unrelated animals of the same breed.
Reason :- This helps to restore fertility & yield by increase in heterozygosity.

A

If both Assertion & Reason are True & Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

How can we restore fertility and yield in case of inbreeding depression ?

Assertion (A) : Continued inbreeding , especially close inbreeding , usually reduces fertility and even productivity . Reason (R) : Selected animals of the inbreeding population should be mated with unrelated superior animals of the same breed usually not helps in restoring of fertility and yield.

Assertion : Mating of more closely related individuals within the same breed for 4-6 generation is called in breeding. Reason : When inbreeding depression becomes a problem, selected animals of the breeding population should be mated with unrelated superior animals of the another breed.

Assertion : In breeding increases homozygosity exposing harmful recessive genes, some of which are eliminated by selection. Reason : Continued inbreeding reduces fertility and productivity.

Assertion : Reptiles can be termed as first true and animals Reason : These are completely independent of water due to the development of internal fertilization and the presence of a special membrane ( amnion) around the developing embryo.

Assertion : Among the land animals. Cheetah can run faster over the ground. Reason : Cheetah uses its powerful forelimbs to push it self forward during running.

Assertion (A): Cross breeding of dairy animals increases the productivity of milk. Reason (R): Lactation period of dairy animals can be increased by cross breeding.

Study the following statements regarding inbreeding and select the incorrect ones. (i) The inbreeding strategies allow the desirable qualities of two different breeds to be combined. (ii) It increases homozygosity. (iii) It also helps in elimination of less desirable genes. (iv) Continued inbreeding increases fertility and productivity.

Go through the following statements regarding inbreeding and select the incorrect ones . (i) The inbreeding strategies allow the desirable qualities of two different breeds to be combined . (ii) It increases homozygosity . (iii) It also helps in elimination of less desirable genes . (iv) Continued inbreeding increases fertility and productivity .

Assertion : A single outcross often helps to overcome inbreeding depression. Reason : Out-crossing is best breeding method for increasing milk productivity.