Chapter 7

Question 0

The fusion of haploid gametes to produce a diploid zygote

Answer 0

Fertilization

Question 1

A description of the growth and reproduction of an individual

Answer 1

Life Cycle

Question 2

Differences in alleles that exist among individuals in a population

Answer 2

Genetic Variation

Question 3

Alternative form of a gene due to mutation.

Answer 3

Alleles

Question 4

A set of two equivalent chromosomes

Answer 4

Homologous pair

Question 5

The separation of pairs of alleles during the production of gametes

Answer 5

Segregation

Question 6

The alleles for each gene are inherited (mostly) independently of each other

Answer 6

Independent Assortment

Question 7

Gametes combine without regard to the alleles they carry

Answer 7

Random Fertilization

Question 8

Identical twins

Answer 8

Monozygotic twins

Question 9

Fraternal twins

Answer 9

Dizygotic twins

Question 10

Genetic composition of an individual

Answer 10

Genotype

Question 11

Physical and physiological traits of an individual

Answer 11

Phenotype

Question 12

An individual who carries two different alleles for a gene

Answer 12

Heterozygous

Question 13

An individual who carries two copies of the same allele

Answer 13

Homozygous

Question 14

An allele which is expressed even when heterozygous; also, the trait which is absent in F1 generation.

Answer 14

Recessive

Question 15

First generation offspring; the hybrid offspring form a cross between homozygous(genetically pure) parents.

Answer 15

F1 Generation

Question 16

The second generation offspring. Produced by mating F1 individuals.

Answer 16

F2

Question 17

Unit of heredity, usually symbolized by numbers.

Answer 17

Gene

Question 18

An allele which is expressed even when heterozygous: also, the trait which is present in the f1 generation.

Answer 18

Dominant

Question 19

A heterozygous individual who had no apparent abnormality but can pass on an allele for a recessive inherited genetic disorder

Answer 19

Carrier