Inbreeding Depression

Q. Continuous inbreeding leads to

1. All of the above
2. Reduced fertility
3. Reduced resistance to disease
4. Reduction in productivity

Q. Regarding assertion and reason, choose the correct option.
Assertion[A]: Excessive inbreeding leads to inbreeding depression
Reason[R]: Increased homozygosity leads to loss of heterozygosity

1. Both A and R are true but R does not explain A
2. Both A and R are true and R explains A
3. A is true and R is false
4. Both A and R are false

Q. Mark the incorrect statement for inbreeding

1. Inbreeding depression increases productivity
2. Increases homozygosity
3. Produces purelines
4. Inbreeding depression can be overcome by outcrossing

Q. How can we overcome inbreeding depression found in certain high yielding animals?

1. By crossing the selected animals with animals belonging to different species
2. By crossing the selected animals with very closely related animals of the same breed
3. By crossing the selected animals with the superior animals of another breed
4. By crossing the selected animals with unrelated superior animals of the same breed

Q. Which of the following can be a remedy for inbreeding depression?

1. Out cross
2. Artificial breeding
3. Cross breed
4. All of the above

Q. Which is the most important but generally not used criteria for the identification of the species?

1. Interbreeding
2. Morphology
3. Genetic material
4. None of the above

Q. Which of the following conditions represents a case of codominant genes?

1. A gene expresses itself, suppressing the phenotypic effect of its alleles.
2. Genes that are similar in phenotypic effect when present seperately, but when together interact to produce a different trait.
3. Alleles, each of which produces an independent effect in a heterozygous condition.
4. Alleles, both of which interact to produce a trait, which may or may not resemble either of the parental types.

Q. Inbreeding increases the frequency of ___.

1. Genetic diversity
2. Genetic linkage
3. Homozygosity
4. Heterozygosity

Q. Inbreeding increases the frequency of ___.

1. Homozygosity
2. Heterozygosity
3. Genetic diversity
4. Genetic linkage

Q. A herd of cattle is showing reduced fertility and productivity. Provide one reason and one suggestion to overcome this problem.

Q. Continuous inbreeding leads to:

1. Reduced fertility
2. Reduced resistance to disease
3. Reduction in productivity
4. All of the above

Q. Which of the following is not a trait chosen in a parent cattle for breeding?

Q. helps to reverse inbreeding depression.

1. Out-crossing
2. Out-breeding
3. Cross-breeding
4. $\mathrm{Interspecific}\mathrm{hybridisation}$

Q. helps to reverse inbreeding depression.

1. Out-crossing
2. Out-breeding
3. Cross-breeding
4. $\mathrm{Interspecific}\mathrm{hybridisation}$

Q. helps to reverse inbreeding depression.

1. Out-crossing
2. Out-breeding
3. Cross-breeding
4. $\mathrm{Interspecific}\mathrm{hybridisation}$

Q. Regarding assertion and reason, choose the correct option.
Assertion[A]: Excessive inbreeding leads to inbreeding depression
Reason[R]: Increased homozygosity leads to loss of heterozygosity

1. Both A and R are true and R explains A
2. Both A and R are true but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. In a population, stabilizing selection is the result of

1. Random mating
2. Population bottleneck
3. Reproductive isolation
4. Founder effect
5. Heterozygote advantage