Bio Quiz 6.1,6.2,6.6

Front 1

Cells are divided into two groups

Back 1

Somatic cells and germ cells

Front 2

Also called body cells, make most up most of your body tissues and organs

Back 2

Somatic cells

Front 3

DNA in your body cells are not passed onto your _________.

Back 3

Offspring/children

Front 4

Cells in your reproductive organs (ovaries and testes) that develop into gametes

Back 4

Germ cells

Front 5

Sex cells are also known as..

Back 5

Gametes

Front 6

Eggs, or..

Back 6

Ova

Front 7

Sperm Cells, or..

Back 7

Spermatozoa

Front 8

Body cells come with a set of ___ chromosomes or ____ pairs.

Back 8

46, 23

Front 9

Each pair of chromosome is referred to as

Back 9

Homologus pair

Front 10

Homologous means..

Back 10

"having the same structure"

Front 11

Two chromosomes, one inherited from mother and one from father

Back 11

Homologous chromosomes

Front 12

Chromosomes that contain genes for characteristics not directly related to the sex of an organism

Back 12

Automsomes

Front 13

Chromosomes that directly control the development of sexual characteristics

Back 13

Sex Chromosomes

Front 14

Humans have 2 very different sex chromosomes known as _ and _.

Back 14

X, Y

Front 15

Two X Chromosomes

Back 15

Female

Front 16

One X and One Y Chromosome

Back 16

Male

Front 17

Larger sex chromsomes that contains numerous genes

Back 17

X Chromsome

Front 18

Smaller sex chromosome that carries fewer genes

Back 18

Y Chromsome

Front 19

Involves the fusion of two gametes that results in offspring that are a genetic mixture of both parents

Back 19

Sexual Reproduction

Front 20

The actual fusion of an egg and a sperm cell

Back 20

Fertilization

Front 21

A cell that has two copies of each chromosome, one copy from the mother, and one copy from the father

Back 21

Diploid

Front 22

The diploid chromosome number in humans

Back 22

46 (2n)

Front 23

Body Cells are also known as D_____.

Back 23

Diploid Cells

Front 24

A cell that has only one copy of each chromosome

Back 24

Haploid

Front 25

Gametes are also known as H_______.

Back 25

Haploid Cells

Front 26

The haploid number in humans

Back 26

23 (n)

Front 27

A form of nuclear division that divides a diploid cell into haploid cells

Back 27

Meiosis

Front 28

Meiosis involves two rounds of division

Back 28

Meiosis I and Meisosis II

Front 29

Duplicated chromosomes that remain attached by the centromere

Back 29

Sister Chromotids

Front 30

Homologus chromosomes divided in _________ and sister chromotids divided in ______.

Back 30

meiosis I, meisosis II

Front 31

Meiosis I has 4 phases

Back 31

Prophase, Metaphase, Anaphase, Telophase, I

Front 32

Nuclear membrane breaks down. Homologus chromosomes begin to pair up

Back 32

Prophase I

Front 33

Spindle fibers align the homologous chromosomes along the cell equator = each side has both parents

Back 33

Metaphase I

Front 34

The paired homologous chromosomes separate from each other and sister chromatids remain attached

Back 34

Anaphase I

Front 35

Spindle fibers dissamble, cell undergoes cytokinesis

Back 35

Telophase I

Front 36

Divides homologous chromosomes, producing two haploid cells with duplicated chromosomes

Back 36

Meiosis I

Front 37

Divides sister chromotids, and results in undoubled chromosomes

Back 37

Meiosis II

Front 38

Nuclear membranes breakdown, centrosomes and centrioles move to opposite side and spindle fibers assemble

Back 38

Prophase II

Front 39

Production of gametes

Back 39

Gametogenesis

Front 40

Male gamete

Back 40

Sperm

Front 41

Female gamete

Back 41

Egg

Front 42

Cells with little more than DNA that are eventually broken down

Back 42

Polar bodies

Front 43

The exchange of chromosome segments between homologous chromosomes during prophase I of meiosis I.

Back 43

Crossing over