Chapter 3

Question 1

Heredity

Answer 1

The passing of physical characteristics from parents to offspring

Question 2

Trait

Answer 2

Each specific characteristic

Question 3

Genetics

Answer 3

The scientific study of heredity

Question 4

Fertilization

Answer 4

Anew organism begins to form when and egg and sperm cells join in this process

Question 5

Purebred

Answer 5

Organisms in the offspring of many generations that have the same form of a trait

Question 6

Gene

Answer 6

A word tat is used to describe the factors of a trait

Question 7

Alleles

Answer 7

The different forms of a gene

Question 8

Dominant allele

Answer 8

One whose trait is always shows up in the organism when the allele is present

Question 9

Recessive allele

Answer 9

hidden whenever the dominant allele is present

Question 10

Hybrid

Answer 10

Organism has two different alleles for a trait

Question 11

Probability

Answer 11

A number that describes how likely is is that an event will occur

Question 12

Punnet square

Answer 12

A chart that shows the genetics

Question 13

Phenotype

Answer 13

How a trait looks or is expressed

Question 14

Genotype

Answer 14

Organism’s alleles

Question 15

Homozygous

Answer 15

An organism that has two identical alleles for a trait

Question 16

Heterozygous

Answer 16

An organism that has two different alleles