traits

Question 1

passing of genetic traits from parent to offspring

Answer 1

hereditythe

Question 2

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

Answer 2

dominant trait

Question 3

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

Answer 3

recessive trait

Question 4

one set of instructions for an inherited trait

Answer 4

gene

Question 5

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

Answer 5

allele

Question 6

an organism appearance or other detectable characteristic

Answer 6

phenotype

Question 7

the entire genetic makeup of a organism; also the contamination of genes for one or more specific traits

Answer 7

genotype

Question 8

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

Answer 8

probability

Question 9

a process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus which results in the production of sex cells

Answer 9

meiosis

Question 10

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

Answer 10

sex chromosomes

Question 11

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

Answer 11

pedigree

Question 12

deoxyribonucleic acid a molecule that is present in all living cells and that contains the information that determines the traits that a living thing inherits and needs to live

Answer 12

dna

Question 13

in a nucleic acid chain a sub unit that consists of a sugar a phosphate and a nitrogenous base

Answer 13

nucleotide

Question 14

a change in the nucleotide base sequence of a gene or dna molecule

Answer 14

mutation