Mitosis

Question 1

What is mitosis

Answer 1

Cell division of somatic cells

Question 2

What is genetics

Answer 2

The study of heredity and variation

Question 3

What do organisms store genetic material in

Answer 3

Chromosomes

Question 4

How many chromosomes do humans have

Answer 4

46

Question 5

What is a locus

Answer 5

A specific location where a gene is

Question 6

Where are chromosomes found in eukaryotes

Answer 6

In the nucleus

Question 7

What is the difference between diploid and haploid

Answer 7

Diploid is 2 sets of chromosomes (46)
Haploid is half the normal number (23)

Question 8

What are polypoids

Answer 8

When cells of some organisms have 3+ copies of chromosomes

Question 9

Explain asexual reproduction

Answer 9

Production from a single parent, genetically identicle to parent

Question 10

What are the advantages of asexual reproduction

Answer 10

-Do not need a mate
-Identicle offspring

Question 11

What are the disadvantages of asexual reproduction

Answer 11

-No genetic diversity, so offspring may not survive in environmental changes

Question 12

Explain sexual reproduction

Answer 12

Production from the fusion of 2 sex cells, different from its parents

Question 13

What are the advantages of sexual reproduction

Answer 13

-Genetic diversity
-Individuals can adapt and survive in environmental changes

Question 14

What are the disadvantages of sexual reproduction

Answer 14

-More effort to find mate
-Attracting a mate can attract predators

Question 15

What is the cell cycle consisted of

Answer 15

Interphase, mitosis, and cytokenesis

Question 16

during interphase, the chromosomes exist as ________

Answer 16

Chromatin

Question 17

What is chromatin

Answer 17

Invisible stringy mass

Question 18

Explain what happens in interphase

Answer 18

-Cell not divididing
-Chromosomes are not visible, are chromatin
-DNA replication happens during S phase, pairs of sister chromatids attach at centromere

Question 19

Explain what happens in prophase

Answer 19

-Chromosomes shorten and thicken
-Centrioles move to opposite ends of the cell for spindle fibres to attach
-Nuclear membrane disappears

Question 20

Explain what happens in metaphase

Answer 20

Spindle fibres attach to centromeres and sister chromatids line up in the middle

Question 21

Explain what happens in anaphase

Answer 21

Sister chromatids, now daughter chromosomes move to opposite ends

Question 22

What happens in telophase

Answer 22

-Chromosomes go to opposite ends and lengthen
-Spindle fibres dissolve
-Nuclear membrane forms around each set of chromatin
-2 daughter nuclei present

Question 23

What happens during cytokenisis in animals

Answer 23

-Cleavage furrow develops
-Cell splits into two

Question 24

What happens during cytokenisis in plant cells

Answer 24

Cell plates form into a new cell wall

Question 25

Chromosomes move to the middle of the spindle during what phase

Answer 25

Metaphase

Question 26

During which phase do chromosomes first become visible

Answer 26

Prophase

Question 27

In what phase does cell growth occur

Answer 27

Interphase

Question 28

In what phase does DNA synthesis occur

Answer 28

Interphase

Question 29

In what phase is mitochondria and other organelles made

Answer 29

Interphase

Question 30

What is the main difference between cytokenesis in plants and animals

Answer 30

In animals, the cell splits into two because of cleavage furrow and in plants it does not

Question 31

What is the main purpose of mitosis

Answer 31

Duplicate cells and replace dead cells

Question 32

Mitosis is part of what cycle

Answer 32

Cell cycle

Question 33

What type of cells undergo mitosis? Sex cells or somatic cells

Answer 33

Somatic cells

Question 34

How does a daughter cell compare to the parent cell after mitosis

Answer 34

It is identicle to the parent

Question 35

Does mitosis make haploid or diploid cells

Answer 35

Diploid

Question 36

What n value are the cells that are made by mitosis -n -2n -4n

Answer 36

2n