Read the following statements (i-iv) and select the option which correctly identifies true (T) and false (F) statements.

i. Higher yield of milk is the only goal of animal breeding
ii. In one of the out-breeding approaches, animals of two different species are allowed to mate
iii. Mule is an example of interspecific hybridisation
iv. Due to continued inbreeding, fertility of offspring gradually increases.

i - T, ii - F, iii - F, iv - F

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i - F, ii - F, iii - T, iv - T

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i - T, ii - T, iii - T, iv - F

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i - F, ii - T, iii - T, iv - F

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Solution

The correct option is D i - F, ii - T, iii - T, iv - F
Selective mating of animals to produce offspring with desired qualities is called animal breeding.

Animals are subjected to breeding process so that they can be beneficial for the humans in several ways like

higher yield of milk

good quality of meat and other animal products

Animal breeding is of two types: inbreeding and out-breeding.

Inbreeding involves the mating of more closely related individuals (having common ancestors) within the same breed for 4- 6 generations.

But due to continued inbreeding, there is a reduction in the fertility and productivity. This is called inbreeding depression

Mating of unrelated animals is called out-breeding. There are three types of out-breeding.

Out-crossing: Mating of unrelated animals within the same breed that do not have common ancestors.

Cross-breeding: Mating of animals belonging to two different breeds.

Interspecific hybridisation: It is the practice of mating male and female animals of two different but closely related species. Mule is an example of interspecific hybridisation. It is obtained by crossing a male donkey and a female horse.

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Similar questions

Q. Read the following statements (i-iii) and identify which of the following statements are incorrect regarding animal breeding?

i. It involves mating of animals followed by the selection of the superior offspring.
ii. Mating can be between animals of the same species or different species.
iii. The purpose of animal breeding is to obtain animals with increased yield but shorter productive life.

Q. Given below are four statements (i)-(iv). Which two of the following statements are correct?

(i) It is estimated that more than 70 percent of the world livestock population is in India and China.
(ii) Stringent cleanliness and hygiene (both of the cattle and the handlers) are of paramount importance while milking, storage and transport of the milk and its products.
(iii) Out-breeding is the breeding between animals of the same breed only.
(iv) Crosses between different breeds is called inbreeding.

Read the following statements (A-D) and select the option which correctly identifies true (T) and false (F) statements.

A. Out-breeding is the practice of breeding related animals.
B. Out-breeding is of three types which include out-crossing, cross-breeding and inbreeding.
C. Out-crossing is the practice of mating of animals within the same breed with no common ancestor up to 2-3 generations.
D. Out-crossing is the best breeding method for animals that are below average in productivity (milk production) and growth rate (meat production).

Read the statements given below about interspecific hybridisation in animals. Choose the right answer.

a) mating between two animals belonging to same species

b) mating between two animals belonging to different species

c) progeny of interspecific hybridisation is fertile

d) progeny of interspecific hybridisation is sterile

Q. In which of the following method of animal breeding is two different species of male and female animals allowed to mate?

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