19.Homozygosity and heterozygosity of an individual can be determined by __

[A] Back cross
[B] Self-fertilization
[C] Test cross
[D] All of the above

1. Inbreeding tends to increase the proportion of homozygous individuals in a population (i.e., individuals with two copies of the same allele).

A. True

B. False

2) The effective size of a population is:

A) The size of an idealized randomly-mating population that is not under selection and has the same heterozygosity as the actual population.

B)The size of an idealized randomly-mating population that has the same heterozygosity as the actual population, but does not lose heterozygosity over time.

C)The size of an idealized randomly-mating population losing homozygosity at the same rate as the actual population.

D) The size of an idealized randomly-mating population losing heterozygosity at the same rate as the actual population.

.

3) Which of the following tends to reduce the effective size of a population?

Check all that apply:

Increasing the census population size

An unbalanced sex ratio

Non-random mating

1. What is heterozygosity? How does heterozygosity work and why it important in the body? Why is a loss of heterozygosity an important process in the development of cancer?

1. p.Trp5del is a synonymous or silent variant. (True or false)

2. Heterozygosities in subpopulations are systematically higher than heterozygosities in the total population(True or false)

3. Heterozygosities among individuals are systematically higher than heterozygosities in subpopulations. (True or false)