Science Study Guide Pt 2

Question 1

Mitosis

Answer 1

a process in which one diploid cell divides and makes four haploid sex cells. there is only one interphase in meiosis

Question 2

4 daughter cells are produces in meiosis but…

Answer 2

they are not identical to the parent cell or to eachother.

Question 3

A parent cell is either diploid or haploid

Answer 3

Diploid

Question 4

A daughter cell is either diploid or haploid

Answer 4

Haploid

Question 5

Reproductive cells are either diploid or haploid

Answer 5

Haploid

Question 6

How many chromosomes does human sperm have?

Answer 6

23

Question 7

How many chromosomes does an egg have?

Answer 7

23

Question 8

How many chromosomes does a zygote have once fertilization takes place?

Answer 8

46

Question 9

The difference between haploids and diploids

Answer 9

Haploids have HALF as many chromosomes as diploids.

Question 10

Crossing over

Answer 10

Chromosomal segments are exchanged between two homologous chromosomes

Question 11

Crossing over occurs in which phase of meiosis?

Answer 11

Prophase 1

Question 12

Meiosis is important because…

Answer 12

it produces 4 haploid cells that are not identical to each other, increasing genetic variation

Question 13

How many haploid cells are produced during meiosis?

Answer 13

4

Question 14

How many nuclear division are produced in meiosis?

Answer 14

2

Question 15

homologous chromosomes

Answer 15

pairs of chromosomes that have genes for the same traits listed in the same arranged order

Question 16

homologous chromosomes are seperated in which phase of meiosis?

Answer 16

Anaphase II

Question 17

25 cells go under ____, ___ daughter cells are reproduced

Answer 17

1. meiosis 2. 10

Question 18

The parent cell is a (diploid/haploid) at the start of meiosis.

Answer 18

diploid

Question 19

The daughter cells are produced from meiosis are diploid are haploid?

Answer 19

haploid

Question 20

Fertilization

Answer 20

A process in which an egg and sperm cell join

Question 21

Zygote

Answer 21

a new cell that forms from fertilization

Question 22

Sexual Reproduction

Answer 22

a type of reproduction in which genetic materials from 2 diff cells combine

Question 23

Sexual Reproduction involves meiosis or mitosis?

Answer 23

Meiosis

Question 24

Meiosis produces ______

Answer 24

gametes (egg and sperm cells)

Question 25

Meiosis reduces ______________________

Answer 25

the number of chromosomes in gametes

Question 26

One cell becomes ___________________

Answer 26

4 non-identical cells

Question 27

1 nuclear division in meiosis or mitosis?

Answer 27

mitosis

Question 28

2 identical daughter cells produced in meiosis or mitosis?

Answer 28

mitosis

Question 29

Sexual rep. is meiosis or mitosis?

Answer 29

Meiosis