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Mating of two varieties of a cattle bree...

Mating of two varieties of a cattle breed like Red Dane which have no common ancestors on either side of their pedigree up to 4-6 generations is an example for.

A

Inbreeding

B

Crossbreeding

C

Outcrossing

D

Interspecific hybridisation

Text Solution

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The correct Answer is:
To solve the question regarding the mating of two varieties of a cattle breed like Red Dane, which have no common ancestors on either side of their pedigree up to 4-6 generations, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Terms**: First, we need to clarify the terms related to breeding: - **Inbreeding**: Mating between closely related individuals (common ancestors). - **Crossbreeding**: Mating between different breeds or varieties to produce hybrids. - **Outcrossing**: Mating between individuals from different genetic backgrounds without common ancestors. - **Interspecific Hybridization**: Crossing between different species within the same genus. 2. **Analyze the Question**: The question specifies that the two varieties have no common ancestors for 4-6 generations. This indicates that the individuals are not closely related. 3. **Eliminate Incorrect Options**: - **Inbreeding**: This is ruled out because it involves mating between closely related individuals. - **Crossbreeding**: While this involves different breeds, it does not specifically mention the absence of common ancestors. - **Interspecific Hybridization**: This is not applicable as it refers to crossing different species, not varieties of the same species. 4. **Identify the Correct Option**: - **Outcrossing**: This is the correct term as it specifically refers to the mating of individuals from different genetic backgrounds without common ancestors. This aligns perfectly with the description given in the question. 5. **Conclusion**: The mating of two varieties of a cattle breed like Red Dane, which have no common ancestors on either side of their pedigree up to 4-6 generations, is an example of **outcrossing**. ### Final Answer: The correct answer is **outcrossing**. ---
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Practice of mating of animals within the same breed, but having no common ancestors on either side of their pedigree upto 4-6 generation is

Match the terms given in column I with their descriptions given in column II and select the correct option from the codes given below. {:(,"Column-I",,"Column-II"),((A),"Out-crossing",(i),"Mating of closely related individuals within the same breed"),((B),"Interspecific hybridisation",(ii),"Mating of animals of same breed but having no common ancestors on either side of their pedigree for 4-6 generations"),((C),"Cross-breeding",(iii),"Mating of animals of two different species"),((D),"Inbreeding",(iv),"Mating of animals belonging to different breeds"):}

The breeding of the unrelated animals, which may be between individuals of the same breed but having no common ancestors for 4-6 generations is called