Mitosis and meiosis

Question 0

G1

Answer 0

Cell grows to adult
size may exit to G0
chromosomes are not visible

Question 1

Interphase

Answer 1

G1 S G2

Question 2

S

Answer 2

DNA copied

Question 3

G2

Answer 3

Prepares to divide

checkpoints that make sure the cells ready to divide and that’s what cancels ignore

Question 4

Mitosis

Answer 4

Nuclear division of chromosomes (sister chromatids)

Prophase metaphase anaphase telophase

Question 5

Prophase

Answer 5

Nuclear envelope breaks apart
chromosomes begin to form
Centrioles migrate to opposite sides of the cell

Question 6

Metaphase

Answer 6

Chromosomes line up in the middle of the cell

centrioles go to the ends of the cell

Question 7

Anaphase

Answer 7

Chromosomes break apart and

the number of chromosomes is doubled

Question 8

Telophase

Answer 8

Nuclei begin to form occurs with cytokinesis

cleavage furrow

Question 9

One-gene-one-protein

Answer 9

Theory that a gene is some portion of a chromosome that gives rise to one protein molecule

Question 10

Meiosis

Answer 10

Cell division that produces reproductive cells in sexually reproducing organisms

Question 11

Zygote

Answer 11

Diploid cell formed when sperm fertilizes egg

Question 12

Synapsis

Answer 12

Paring of homologous chromosomes in a diploid cell

Occurs in prophase1 of meiosis

Question 13

Prophase 1

Answer 13

First phase of meiosis 1
Replicated chromosomes condense 
Homologous pairs pair up
Crossing over occurs
Spindle formed
Nuclear envelope breaks

Question 14

Tetrads

Answer 14

During Prophase1 meiosis

Paired set of homologous chromosomes

Question 15

Metaphase1

Answer 15

Tetrads align at the equatorial plan

Question 16

Anaphase 2

Answer 16

Breakdown of proteins holding the sister chromatids together at the centromere allowing them to separate
Move towards opposite poles

Question 17

Telophase 2

Answer 17

Final phase of meiosis 2

same as militia telophase but halved a second time

Question 18

Meiosis 2

Answer 18

Second division of a two stage process of cell division in sexually reproducing organisms that results in cells with half the chromosome number of the original cell

Question 19

Gametogenesis

Answer 19

Process

Gametes are produced through combination of meiosis and maturational changes

Question 20

Spermatogenesis

Answer 20

Effects in seminiferous tubules that produce male gametes

Question 21

Spermatogonium

Answer 21

Diploid cell that can undergo mitosis to form more spermatogonium, and can also be triggered to undergo meiosis to form sperm

Question 22

Seminiferous tubules

Answer 22

Narrow coiled tubes that produce sperm in the testes

Question 23

Oogenesis

Answer 23

Production of female gamete

Question 24

Ovum

Answer 24

Mature egg cell

Question 25

Primary locate

Answer 25

Diploid cell in prophase 1 of meiosis that can be hormonally triggered to develop into an ovum

Question 26

Polar bodies

Answer 26

Byproduct of oogenesis

Cells with little for than DNA are eventually broken down

Question 27

Mitotic spindle

Answer 27

Microtubules and proteins involved in movement of chromosomes

Question 28

Metaphase plate

Answer 28

Between poles of a cell where centromeres line up

Question 29

Cleavage furrow

Answer 29

Pinching of cell membrane to divide cytoplasm

Question 30

Cytokinesis

Answer 30

Division of cytoplasm

Question 31

Meristem

Answer 31

Undifferentiated tissue to form new cells at ends of stem or root

Question 32

Apical meristem

Answer 32

Undifferentiated cells to increase length of stems and roots

Question 33

Cancer

Answer 33

Malignant growth or tumor caused by cell division