Meiosis Flashcards


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created 2 years ago by staceysavage
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1

meiosis

type of cell division that occurs in the sex cells

reduction division

creates egg and sperm with half the chromosomes as the parent cell

2

autosome

body chromosome, identified by number

3

sex chromosome

chromosomes that determine the sex of the offspring

X or Y, Female XX, Male XY

4

somatic cell

typical body cell, such as a skin cell, muscle cell, bone cell

5

gamete

egg or sperm

cells for sexual reproduction

6

haploid

cell that contains half the number of chromosomes

7

diploid

cells that contain 2 copies of each type of chromosome

8

# chromosomes in a human somatic cell

46

9

# of chromosomes in a human gamete

23

10

tetrad

card image

pairs of homologous chromosomes

11

homologous chromosomes

chromosomes that contain the same kind of information

12

p arm

short arm of chromosome

13

q arm

long arm of chromosome

14

chromosome band

location of the gene on a chromosome (5p3)

15

crossing over

swapping of genes between two homologous chromosomes (happens during Prophase I-Metaphase I of meiosis)

16

oogenesis

production of egg cells

17

spermatogenesis

production of the sperm cells

18

Number of cells produced at the end of meiosis

4 cells that are unique