3.1-3.3

Question 1

heredity

Answer 1

the passing of genetic traits from parent to offspring

Question 2

dominant trait

Answer 2

the trait in the first generation when parents that have different traits are bred

Question 3

recessive trait

Answer 3

a trait that reappears in the second generation after disappearing in the first generation when parents with different traits are bred

Question 4

gene

Answer 4

one set of instructions for an inherited trait

Question 5

allele

Answer 5

one of the alternative forms of a gene that governs a characteristic such as hair color

Question 6

phenotype

Answer 6

an organisms appearance or other detectable charcteristic

Question 7

genotype

Answer 7

the entire genetic makeup of an organism also the combination of genes for one or more specific traits

Question 8

probability

Answer 8

the likelihood that a possible future event will occur in any given instance of the event

Question 9

homologous chromosomes

Answer 9

chromosomes that have the same sequence of genes and the same structure

Question 10

meiosis

Answer 10

a copying process that produces cells with half the usual number of chromosomes

Question 11

sex chromosomes

Answer 11

one of the pair of chromosomes that determine the sex of an individual

Question 12

pedigree

Answer 12

a diagram trait in several generations that shows the occurrence of gene of a family