Unit 5 Test

Question 1

Gene

Answer 1

sequences of DNA that codes for a protein and determines a trait

Question 2

Genotype

Answer 2

genetic makeup of an organism

Question 3

Incomplete Dominance

Answer 3

situation in which one allele isn’t completely dominant over another allele

Question 4

Trait

Answer 4

specific characteristics of an individual

Question 5

Fertilization

Answer 5

process in sexual reproduction in which male and female reproductive cells join to from a new cell

Question 6

Gamete

Answer 6

sex cell

Question 7

Segregation

Answer 7

separation of alleles during gamete formation

Question 8

Probability

Answer 8

likelihood that particular event will occur

Question 9

Hybrid

Answer 9

offspring of crosses between parents with different traits

Question 10

Allele

Answer 10

one of a number of different forms of a gene

Question 11

Genetics

Answer 11

scientific study of heredity

Question 12

Heterozygous

Answer 12

having 2 different alleles fora particular gene

Question 13

Homozygous

Answer 13

having 2 identical alleles for a particular gene

Question 14

Codominance

Answer 14

situation in which the phenotypes produced by both alleles are completely expressed

Question 15

What are traits determined by?

Answer 15

Genes

Question 16

What does cross mean in terms of genetics

Answer 16

mating

Question 17

How many alleles form a gene?

Answer 17

2

Question 18

What is the principle of dominance?

Answer 18

Some alleles are dominant and other alleles are recessive

Question 19

What is the importance of understanding genetics? How is genetics used in more than just reproduction?