Chapter 14: Textbook

Question 1

A heritable feature that varies among individuals

Answer 1

Character

Question 2

Variant for a character

Answer 2

Trait

Question 3

Hybridization

Answer 3

Mating or crossing of two true breeding varieties

Question 4

Law of segregation

Answer 4

States that the two alleles for a heritable character separate from each other during gamete formation and end up in different gametes

Question 5

Homozygous

Answer 5

Pair of identical alleles

Question 6

Heterozygous

Answer 6

Pair of different alleles

Question 7

Phenotype

Answer 7

Observable traits

Question 8

Genotype

Answer 8

Genetic makeup

Question 9

Define law of independent assortment

Answer 9

States that two or more genes assort independently that is each pair of alleles segregates independently of any other pair of alleles during gamete formation

Question 10

Complete dominance

Answer 10

One allele in a pair showed dominance over the other

Question 11

Incomplete dominance

Answer 11

When hybrids have a phenotype somewhere between those of the two parental varieties

Question 12

Co dominance

Answer 12

The two alleles each affect the phenotype in separate distinguishable ways

Question 13

Pleiotropy

Answer 13

Most genes have multiple phenotypic effects

Question 14

Epistasis

Answer 14

The phenotypic expression of a gene at one lochs alters phenotypic expression of a gen at a second locus

Effect of one gene is masked or modified by one or more other genes

Question 15

Di Hybrid Cross with heterozygous

Answer 15

9 3 3 1

Question 16

Ratio of the progeny of a mono hybrid cross

Answer 16

Genotypic = 1:2:1
Phenotypic = 3:1

Question 17

If a plant with purple, axial flowers and green inflated pods is heterozygous for all 4 genes, how many different types of gametes can it produce?

Answer 17

2^n
2^4
= 16