Question

How does inbreeding alter genotype and allele frequencies? see section 23.2 ( page 462)?

Answer 1

Inbreeding can alter genotype and allele frequencies in a population. It can lead to a decrease in fitness and an increase in the expression of harmful phenotypes. Inbreeding reduces genetic diversity and can negatively impact the health and viability of a population.

Step-by-step explanation:

Inbreeding can alter genotype and allele frequencies in a population. When closely related individuals mate with each other, there is a higher chance of offspring inheriting harmful recessive mutations. This can lead to a decrease in fitness and an increase in the expression of detrimental phenotypes.

For example, inbreeding can bring together rare, deleterious mutations that would not be expressed in a population with sufficient genetic diversity. As a result, the frequency of harmful alleles may increase, while the frequency of beneficial alleles may decrease.

Overall, inbreeding reduces genetic diversity and can negatively impact the health and viability of a population over time.

Answer 2

Answer;

Homozygotes increase in frequency in the population over generations. and genetic variation decreases in the section of the population.

Explanation;

-Inbreeding is the mating of relatives or, mating of individuals with at least one common ancestor. With continuous inbreeding, genetic variation is lost and homozygosity is increased, enabling the expression of recessive deleterious alleles in homozygotes.

-By inbreeding, individuals are further decreasing genetic variation by increasing homozygosity in the genomes of their offspring.