Mitosis and Meiosis

Question 0

An organized representation of all chromosomes in a cell.

Answer 0

karyotype

Question 1

Chromosomes in eukaryotes :
composed of _____________
complex of ________&__________

Answer 1

chromatin

DNA and proteins

Question 2

two copies of each chromosome

Answer 2

diploid cells

Question 3

chromosomes in each pair are termed _____

Answer 3

homologs

Question 4

humans have _____ pairs of chromosomes

Answer 4

23

Question 5

Eukaryotic cell cycle:

interphase=

Answer 5

G1, S, G2

Question 6

a region of the DNA where kinetochore joins two homologous chromosomes

Answer 6

centromere

Question 7

when two homologous chromosomes are joined, they are also known as …

Answer 7

sis chromatids

Question 8

a protein that joins homologous chromosomes at the centromere

Answer 8

kinetochore

Question 9

organizes and sorts chromosomes

Answer 9

the mitotic spindle in animals.

Question 10

the mitotic spindle in animals:

centromere is located at __________

Answer 10

spindle pole

Question 11

the mitotic spindle in animals:

___ centrioles per centrosome that are perpendicular

Answer 11

2

Question 12

The mitotic spindle in animals:

________ _________interacts with plasma mem. to position the spindle

Answer 12

aster microtubles

Question 13

The mitotic spindle in animals:

________ _ interact with other polar microtubules to push poles apart

Answer 13

polar microtubules

Question 14

The mitotic spindle in animals:

_________ _____ interact with kinetochores to pull chromatids apart.

Answer 14

kinetochore microtubules

Question 15

chromosomes condense into chromatids nuclear mem. dissociates into vesicles

Answer 15

prophase

Question 16

centromeres move to opposite ends of the cell

Answer 16

promethaphase

Question 17

chromatid pairs line up half way between the centromeres

Answer 17

metaphase

Question 18

kinetochores break in half and sis chromatids are pulled apart towards the centromeres

Answer 18

anaphase

Question 19

chromatids decondense, two nuclear mem. form

Answer 19

telephase

Question 20

cell mem. pinches in and forms two cells

Answer 20

cytokinesis

Question 21

mitosis results in __________ cells

Answer 21

diploid

Question 22

mitosis is __________ reproduction

Answer 22

asexual

Question 23

Gametes are typically _________ and result from __________

Answer 23

haploid, meiosis

Question 24

meiosis results in ___________ cells

Answer 24

haploid

Question 25

Meiosis 1 prophase terminology:
process of homologous chromatid pairs joining?
chromatids pairs that are joined?
proteins that join that bivalent chromatids?

Answer 25

synapsis
bivalents
synaptonemal complex

Question 26

• process of homologous chromatid pairs joing

- connection that results from crossing over

Answer 26

crossing over

chiasma

Question 27

centromeres move to opposite ends of cell

-microtubles attach to kinetochores of bivalents

Answer 27

M1 prometaphase

Question 28

bivalents align along metaphase plate

-bivalent arrangement is random

Answer 28

M1 metaphase

Question 29

bivalents seperate

-sis chromatid pairs do not! unlike mitosis

Answer 29

M1 anaphase

Question 30

kinetochores break in half and sis chromatids are pulled apart, towards the centromeres.

Answer 30

Mitosis anaphase

Question 31

Chromatid decendensation may occur

-nuclear mem. may reform

Answer 31

M1 telophase and cytokinesis

Question 32

Meiosis II results in _____________ germ cells

Answer 32

haploid

Question 33

Meiotic process leads to __________ ___________.

Answer 33

chromosome shuffling

Question 34

seperation of ____________ in M1 and ___________ in M2 is random

Answer 34

bivalents

chromatids

Question 35

how many combinations are possible?

humans have __ chromosomes therefore …

Answer 35

23

8.4 billion