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Interspecific Hybridisation

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Question

Read the following statements.

(i) In this method of breeding, the mating of animals occurs within the same breed.

(ii) The animals selected for mating have no common ancestors on either side of their pedigree upto 4 - 6 generations.

(iii) It is the best breeding method for those animals that are below average in productivity in milk production, growth rate in beef cattle.

(iv) It helps to overcome inbreeding depression.

The features mentioned above refer to which type of breeding?

A

Out-crossing

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B

Inbreeding

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C

Cross-breeding

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D

Interspecific hybridisation

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Solution

The correct option is A Out-crossing
Out-crossing is an outbreeding technique where the mating occurs within the same breed but the individuals selected for mating do not have a common ancestor on either side of the pedigree upto 4 - 6 generations.

It is the best breeding method for animals which are below average in productivity in milk production and growth rate in beef cattle.

A single outcross helps to overcome inbreeding depression (Inbreeding depression is reduced fertility and productivity in organisms due to continued inbreeding).

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Similar questions

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

A. Outbreeding 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 ancestors upto 3-8 generations.
D. Out-crossing is the best breeding method for animals that are average in productivity (milk production), growth rate (meat production).

Q. suggest the title when two closely related individuals within same breed for 4 to 6 generations are being mated guess the best breeding method for animals which are below averagd in milk productivity growth rate in cattle and justify Your guess

Q. A few statements are given below followed by a set of terms in a box. Pick the correct term and write it against the appropriate statement
a. Mating of closely related individuals within the same breed
b. Mating of animals of same breed but having no common ancestors on either side for 4-6 generations
c. Mating of animals of two different species
d. Breeding of animals belonging to different breeds.

(i) Cross breeding, (ii) Inter-specific hybridization, (iii) Out breeding, (iv) Out crossing, (v) Inbreeding

Q. Inbreeding depression can be overcome by: 1) mating of animals of same breed, but having no common ancestors on either side of their pedigree upto 4-6 generations 2) mating males of one breed with superior females of another breed 3) interspecific hybridisation 4) all of these The answer is given (1), but isnt it (4)? If (1) can prevent inbreeding depression, surely (2) and (3) also can right?

Q. Explain this line " it is the best breeding method for the animals that are below average in the productivity in the milk production ,growth rate in beef cattle" pg no 168

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