Mitosis and Meiosis

Question 1

Where is the genetic info found in a cell?

Answer 1

on genes on the chromosones

Question 2

what are chromosomes made of?

Answer 2

DNA and proteins

Question 3

How many chromosomes in humans?

Answer 3

46

Question 4

Before coiling, what are DNA and proteins called?

Answer 4

Chromatin

Question 5

What is a histone?

Answer 5

DNA coiled around a protein aka spool

Question 6

What are two copied parts of DNA called?

Answer 6

Chromatids

Question 7

What are chromatids held together with?

Answer 7

A centromere

Question 8

What does supercoil mean?

Answer 8

form into a superhelix

Question 9

What happens during the cell cycle?

Answer 9

cells grow
prepare for division
divide to form two daughter cells

Question 10

What cells often go through the cell cycle?

Answer 10

skin, digestive tract lining, and blood cells

Question 11

What is the first period during interphase?

Answer 11

G₁ phase

Question 12

What happens during the G₁ phase?

Answer 12

The cell grows

Question 13

What is the second period during interphase?

Answer 13

S phase

Question 14

What does ‘S’ stand for?

Answer 14

Synthesis

Question 15

What happens during the S phase?

Answer 15

The chromosomes replicate themself

Question 16

What is the final phrase of interphase?

Answer 16

G₂ phase

Question 17

What happens during the G₂ phase?

Answer 17

The cell grows rapidly to prepare for division

Question 18

Whats the longest phase of the CELL CYCLE?

Answer 18

Interphase

Question 19

How much of the time is a cell in interphase?

Answer 19

Over half the time

Question 20

What is the longest phase of MITOSIS?

Answer 20

The prophase

Question 21

What happens during the prophase?

Answer 21

centrosomes appear, and the chromosomes coil more and are visible under a microscope

Question 22

What is the shortest part of MITOSIS?

Answer 22

The metaphase

Question 23

What happens during the metaphase?

Answer 23

The chromosomes line up in the middle (Metaphase – Middle)

Question 24

What are spindles also known as?

Answer 24

Microtubules

Question 25

What happens during the anaphase?

Answer 25

The chromatoids separate to opposite sides

Question 26

What happens to the spindles?

Answer 26

They shorten

Question 27

What facilitates the synthesis of microtubules?

Answer 27

The centrosomes during the prophase

Question 28

Wen are the centrosomes at the opposite poles?

Answer 28

At the metaphase

Question 29

What do you call the broken chromatids during the anaphase?

Answer 29

Chromosomes

Question 30

What happens during the telephase?

Answer 30

Chromosomes arrive at the ends of the cell Chromosomes uncoil Nuclear membrane reappears Spindle fibers are disassembled

Question 31

What is a cleavage furrow?

Answer 31

Where the cell membrane pinches in

Question 32

What is cytokinesis?

Answer 32

Dividing of cellular contents, occurs simultaneously with telophase

Question 33

What is the first stage of the cell cycle?

Answer 33

Interphase

Question 34

What is the second stage of the cell cycle?

Answer 34

Prophase

Question 35

What is the third phase of the cell cycle?

Answer 35

Metaphase

Question 36

What is the fourth phase of the cell cycle?

Answer 36

Anaphase

Question 37

What is the fifth phase of the cell cycle?

Answer 37

Telophase

Question 38

What occurs after mitosis?

Answer 38

Cytokinesis

Question 39

What happens during the telophase in a plant cell?

Answer 39

A cell plate forms

Question 40

T or F? There are centrioles in plant cells.

Answer 40

False

Question 41

What is a gamete?

Answer 41

A sex cell

Question 42

What is meiosis?

Answer 42

A process which splits the number of chromosomes in half during production of gametes

Question 43

What are homologous chromosomes?

Answer 43

Like chromosomes

Question 44

What happens during Interphase 1?

Answer 44

The chromosomes replicate (1 from father and 1 from the mother)

Question 45

What comes after Interphase 1?

Answer 45

Prophase 1

Question 46

What happens during prophrase 1?

Answer 46

The two homologous come together to form a tetrad

Question 47

What happens during telophase and anophase 1?

Answer 47

Chromosomes separate independently of each other?

Question 48

What is it called when Chromosomes separate independently of each other?

Answer 48

Independent assortment

Question 49

What does Independent assortment result in?

Answer 49

Random separation of chromosomes genetic recombination

Question 50

When does Meiosis 2 occur?

Answer 50

Right Right after Telophase I

Question 51

Is there interphase in Meiosis 2?

Answer 51

No

Question 52

What gender is XY?

Answer 52

Male

Question 53

What gender is XX?

Answer 53

Female

Question 54

How many haploid sperm does Spermatogenesis produce?

Answer 54

4