Quiz 2 - Ch. 9

Question 1

Monohybrid Cross

Answer 1

single trait crossing

Question 2

P-Generation

Answer 2

parental generation; the first one, sometimes includes “true-breeding” organisms

Question 3

F-Generation

Answer 3

fillial generation or child generation; product of parental generation

Question 4

Genotype

Answer 4

combination of alleles

Question 5

Phenotype

Answer 5

outward expression of trait

Question 6

Homozygous Dominant

Answer 6

PP

Question 7

Heterozygous

Answer 7

Pp

Question 8

Homozygous Recessive

Answer 8

pp

Question 9

Law of Segregation

Answer 9

gametes carry only one allele for a given trait

Question 10

Law of Independent Assortment

Answer 10

different alleles for different traits are inherited separately

Question 11

Incomplete Dominance

Answer 11

phenotype of the heterozygote is intermediate/between the homozygotes

Question 12

Codominance

Answer 12

more than 1 allele dominant/expressed at the same time (ex: blood type)

Question 13

Pleiotophy

Answer 13

one gene with many phenotypic effects (ex: sickled cells)

Question 14

Polygenic Inheritance

Answer 14

more than one gene for a trait (ex: eye color)

Question 15

Sex-Linked Gene

Answer 15

a gene located on a sex chromosome; mostly on the X chromosome (and therefore more common in males since they only have one X chromosome to choose from)