Cells Division

Question 0

Prophase

Answer 0

Chromatin coils into visible chromosome, nuclear envelope disappears, and centrioles move toward the poles.

Question 1

Interphase

Answer 1

The cell grows, centrioles replicate, and chromosomes duplicate.

Question 2

Metaphase

Answer 2

Chromosomes meet in the middle and the spindle fibers attach to each chromatid at the centromere.

Question 3

Anaphase

Answer 3

The centromeres split ( chromosomes split in half) and the sister chromatids are pulled to opposite ends of the cell.

Question 4

Telophase

Answer 4

Cytoplasm divides ( cytokinesis), nuclear envelope appears, and the chromosomes uncoil.

Question 5

Cytokinesis

Answer 5

The division of the cytoplasm.

Question 6

Daughter Cells

Answer 6

The result of mitosis and cell division.

Question 7

Haploid

Answer 7

23 chromosomes (ex. sex cells)

Question 8

Diploid

Answer 8

46 chromosomes 2(23). 1/2 from mom and 1/2 from dad. Every other cell in body.

Question 9

Crossing Over

Answer 9

2 chromosomes (one from mom, one from dad) get really close because they are sticky and they trade parts with each other.

Question 10

Mitosis

Answer 10

The second phase of cell division.

Question 11

Meiosis

Answer 11

RNA makes chains of amino acids

Question 12

Transcription

Answer 12

DNA makes the m RNA which leaves the nucleus with the codon.

Question 13

Translation

Answer 13

The mRNA finds a ribosome and looks for the tRNA with the anticodon. The tRNA brings the amino acids which connect together as the anticodons continue to go down the mRNA

Question 14

Gamete

Answer 14

It’s a haploid. They come from somatic cells.

Question 15

Is a smaller cell or a bigger cell more efficient?

Answer 15

Usually a smaller cell because they can move around better.

Question 16

Hen is DNA in chromatin form and when does it turn itself into chromosome form?

Answer 16

It is in chromatin form during interphase and turns into chromosomes at prophase.

Question 17

G1

Answer 17

Duplicates cytoplasmic DNA

Question 18

Synthesis

Answer 18

Duplicates the DNA

Question 19

G2

Answer 19

Organizes and makes sure everything is good.

Question 20

When does DNA synthesize?

Answer 20

In interphase (the S phase)

Question 21

When does the cell grow?

Answer 21

In the G1 phase.

Question 22

When does the cell divide?

Answer 22

The end of telophase in mitosis.

Question 23

What is the difference in cell division between plants and animals?

Answer 23

Animal cell have cytokinesis but plant cells just build another cell wall.

Question 24

Cyclins

Answer 24

The regulators of the cell cycle.

Question 25

Cancer

Answer 25

The cell never dies and it grows out of control and doesn’t receive signals.

Question 26

Tumor

Answer 26

A mass of tissue that results from excessive cell division.

Question 27

Purines

Answer 27

A & G. They are bigger.

Question 28

Pyrimidines

Answer 28

C & T. They are smaller.

Question 29

How are nucleosomes, histones, chromosomes, and DNA molecule related?

Answer 29

They are all in or help to form the DNA strand (double helix).

Question 30

Difference in the results of male/female meiosis

Answer 30

In females you have 3 polar bodies that aren’t used and one cell that is used. In males you use all the cells and are continually making them.

Question 31

How are codon, anticodon, and amino acid related?

Answer 31

The codon is the code on the mRNA which matches the anticodons that carry the amino acids.

Question 32

How are DNA and RNA similar and different?

Answer 32

DNA is the whole double helix and RNA is just one side of it.

Question 33

3 types of RNA

Answer 33

Messenger RNA, transfer RNA, and ribosomal RNA

Question 34

Purines in RNA

Answer 34

A & G

Question 35

Pyrimidines in RNA

Answer 35

C & U

Question 36

What chromosomes would be in a human egg cell? Sperm cell?

Answer 36

Egg- XX

Sperm-XY

Question 37

What determines the rate at which waste is produced in cells?

Answer 37

Surface area and metabolism.

Question 38

Homologous Chromosomes

Answer 38

Chromosomes that are the same (ex. tetrad)

Question 39

Tetrads

Answer 39

4 chromosomes (the ones form mom and dad) that get copied.