10.3

Question 1

Homologous chromosomes

Answer 1

chromosones that each have the same genes in the same order, but there may be variation between them, resulting in different alleles(B, b. A, a)

Question 2

Sister chromatids

Answer 2

two identical halves of a chromosome

Question 3

Fertilization

Answer 3

the union of two gametes

Question 4

Gamete

Answer 4

a reproductive cell

Question 5

Somatic cell

Answer 5

any cell of a living organism other than the reproductive cells (tissue cells, blood cells, etc)

Question 6

Haploid (n)

Answer 6

the presence of a single set of chromosomes in an organism’s cells

Question 7

Diploid (2n)

Answer 7

containing two complete sets of chromosomes, one from each parent

Question 8

Tetrad

Answer 8

a group of four cells formed during meiosis

Question 9

Synapsis

Answer 9

connecting of homologus chromosones to form a tetrad

Question 10

Crossing over

Answer 10

sharing of genetic material between 2 nonsiter chromitads in a homolougous pair.

Question 11

Independent assortment

Answer 11

how different genes are passed down from parents to offspring independently of each other during meiosis

Question 12

The order and events of the stages of meiosis

Answer 12

chromosones have arleady replicated by G2. Synapse and crossover occurs during prophase. During metaphase homolougus pairs are still in tetrad (groups of 4). Tetrad breaks apart during anaphase. Meosis 2 follows and at the end there are 4 haploid cells