Chapter 15

Question 1

what are transmission genetics

Answer 1

deals with the manner in which genetic differences among individuals are passed from generation to generation

Question 2

what studies did Mendel conduct

Answer 2

hybridization studies between two different varieties of the pea plant

Question 3

what is true breeding

Answer 3

the physical appearance of the offspring in each successive generation is identical to the previous one

Question 4

what happens in pea plant crossing

Answer 4

1. the anthers of the female parent are exposed thence off to prevent self fertilization
2. mature pollen is collected from another flower and deposited on the stigma of the female parent
3. after fertilization a small cloth bag is tied around the fertilized flower to prevent stray pollen from entering

Question 5

what was Mendels most important discovery

Answer 5

the F1 progeny of a cross between plants with different traits did not breed true

Question 6

what is the principle of segregation

Answer 6

describes how pairs of gene variants are separated into reproductive cells

Question 7

what is independent segregation of alleles in meiosis

Answer 7

segregation reflects the separation of homologous chromosomes during anaphase I of meiosis

Question 8

what is the principle of independent assortment

Answer 8

states that segregation of one set of alleles of a gene pair is independent of the segregation of another set of allele of a different gene pair