Science-Chapter 3; Heredity

Question 1

heredity

Answer 1

the passing of genetic traits from parent to offspring

Question 2

dominant trait

Answer 2

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

Question 3

recessive traits

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

the different forms of a gene

Question 6

phenotype

Answer 6

an organisms appearence or other detectable characteristic

Question 7

genotype

Answer 7

the entire genetic makeup of an organism

Question 8

probability

Answer 8

the mathematical chance that something will happen

Question 9

homologous chromosomes

Answer 9

chromosomes that carry the same sets of genes

Question 10

meiosis

Answer 10

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

Question 11

sex chromosomes

Answer 11

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

Question 12

pedigree

Answer 12

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