Unit 10 Quiz

Question 1

Cell division

Answer 1

Eukaryotic cells

somatic cells-non sex cells

Question 2

Cell cycle

Answer 2

1. Interphase-preparation
2. Mitosis- division of nucleus
3. cytokinesis- division of cytoplasm (begin in anaphase)

Question 3

Interphase

Answer 3

1. G1- cytoplasmic growth
2. S- DNA is replicated
3. G2- extra protein production (protein used in mitosis)

Question 4

Mitosis

Answer 4

1. Prophase
2. Metaphase
3. Anaphase
4. Telophase

Question 5

Meiosis

Answer 5

division of gametes (Egg and sperm)

Question 6

Meiosis I

Answer 6

1. Prophase I
2. Metaphase I
3. Anaphase I
4. Telophase I

Question 7

Meiosis II

Answer 7

1. Prophase II
2. Metaphase II
3. Anaphase II
4. Telophase II

Question 8

Dipoid

Answer 8

normal number of chromosomes

Question 9

Haploid

Answer 9

half of normal number of chromosomes

Question 10

Interkinesis

Answer 10

resting period between end of meiosis I and beginning of meiosis II

Question 11

Prophase I

Answer 11

1. synapsing- pair up, intertwine, and wrap around each other
2. crossing over- nonsister chromatids exchange genetic information (ensures genetic diversity)

Question 12

Spermatogensis

Answer 12

46 replicated
23 replicated -Meiosis I
23 single stranded- Meiosis II

Question 13

Oogenesis

Answer 13

unequal cytokinesis

Polar bodies- the three small cells

Question 14

How many nuclear divisions in mitosis?

Answer 14

1

Question 15

How many nuclear divisions in meiosis?

Answer 15

2

Question 16

Mitosis=

Answer 16

one cell creates 2 cells that are genetically identical

Question 17

Meiosis=

Answer 17

one cell creates 4 cells that are genetically diverse/distinct

Question 18

What types of cells divide by mitosis?

Answer 18

somatic body cells

Question 19

What types of cells divide by meiosis?

Answer 19

gametes/ germ cells/ reproductive cells

Question 20

What is the function of asters?

Answer 20

Asters hold the two centrioles in place at the two poles of the cell during cell division

Question 21

What is the function of the kinetochore?

Answer 21

Kinetochores aid in the movement of chromosomes. Spindle microtubules attach to the kinetochores of chromosomes.

Question 22

What is a chiasma?

Answer 22

The points where crossing over occurred on the nonsister chromatids

Question 23

Define the term cytokinesis

Answer 23

the division of the cytoplasm

Question 24

What is a polar body?

Answer 24

the small cell that results from asymmetrical cell division (cytokinesis)

Question 25

During what process is a polar body formed?

Answer 25

meiosis II in oogenesis

Question 26

Define the term crossing over

Answer 26

nonsister chromatids exchange genetic information

Question 27

When during meiosis does crossing over occur?

Answer 27

prophase I

Question 28

oogenesis

Answer 28

Oogenesis is the production of an ovum or egg cell, the female gamete or sex cell.

Question 29

Spermatogenesis

Answer 29

Spermatogenesis is the process of making sperm cells, or developing immature germ cells

Question 30

Mitosis and Meiosis similarities

Answer 30

interphase

Question 31

Mitosis differences

Answer 31

- produces 2 cells - produces diploid cells - 1 round of division - genetically identical daughter cells - used by somatic cells

Question 32

Meiosis differences

Answer 32

- produces 4 cells - produces haploid cells - 2 rounds of division - genetically distinct daughter cells - used by germ cells

Question 33

Under what conditions in an organism would mitosis be used for cellular division?

Answer 33

- growth - asexual reproduction - would healing (repair)

Question 34

What cell types perform meiosis?

Answer 34

germ cells

Question 35

How many cells are created at the end of mitosis?

Answer 35

2

Question 36

In males, how many cells are created at the end of meiosis? How many survive?

Answer 36

4 4 survive in human males 1 survives in human females

Question 37

In females, how many cells are created at the end of meiosis? How many survive?

Answer 37

4 4 survive in human males 1 survives in human females

Question 38

G1

Answer 38

growth, replication of organelles

Question 39

S

Answer 39

synthesis (replication) of DNA

Question 40

G2

Answer 40

assembly of spindle beings

Question 41

M

Answer 41

division of nuclear contents