Chapter 9 Vocab

Question 1

Heredity

Answer 1

Transmission of traits from one generation to the next

Question 2

Genetics

Answer 2

Scientific study of heredity

Question 3

Character

Answer 3

Heritable feature that varies among individuals

Question 4

Trait

Answer 4

Each variant for a character

Question 5

True-breeding

Answer 5

Varieties for which self-fertilization produced offspring all identical to the parent

Question 6

Hybrids

Answer 6

Offspring of two different varieties

Question 7

Genetic cross

Answer 7

Cross fertilization, hybridization

Question 8

P Generation

Answer 8

The true breeding parents

Question 9

F1 Generation

Answer 9

The P Generation hybrid offspring

Question 10

F2 Generation

Answer 10

The offspring when F1 fertilize or self fertilize each other

Question 11

Alleles

Answer 11

Alternative versions of a gene

Question 12

Homozygous

Answer 12

An organism that has two identical alleles

Question 13

Heterozygous

Answer 13

An organism that has two different alleles

Question 14

Dominant allele

Answer 14

If the two alleles of an inherited pair differ, then one determines the organisms appearance

Question 15

Recessive allele

Answer 15

If the two alleles of an inherited pair differ,this one has no noticeable effect on the organisms appearance

Question 16

Law of segregation

Answer 16

Statement that says a sperm or egg carries only one allele for each inherited character because allele pairs separate from each other during the production of gametes