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16 Mar 2019

) What is the longest stage of the cell cycle? Interphase, Prophase, Metaphase, Anaphase of Telophase.

2) When are chromosomes duplicated?

3) what happens during the G2 phase

4) What is the difference between karyokinesis and cytokinesis?

5) what is a bivalent?

6) how does meiosis generate genetic diversity?

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16 Mar 2019
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Related questions

A cell in G1 of interphase has 12 chromosomes. How many chromosomes and DNA molecules will be found per cell when this original cell progresses to the following stages?
....G2 of interphase, Metaphase I of meiosis, Prophase of mitosis, Anaphase I of meiosis, Anaphase II of meiosis, Prophase II of meiosis, After cytokinesis following mitosis, and After cytokinesis following meiosis II.

**If you wouldn't mind, please arrange them in chronological order that it happens in the process so it's easier to understand, thanks**

Part A:

In prokaryotes and eukaryotes cell reproduction is similar in that it requires some kind of signal to proceed, DNA replication, careful separation of the DNA into two equal portions, and division of the cytoplasm. How is cell reproduction different in prokaryotes and eukaryotes?

Select one:

a. In a eukaryotic organism, the signals for cell division are usually not related to the environment but to the function of the entire organism.

b. Eukaryotic cells constantly divide whenever environmental conditions are adequate and the cells are large enough.

c. The linear chromosomes in prokaryotes are constantly being updated.

d. Prokaryotic cell division requires cytokinesis before mitosis because of their small size.

e. The sexual phase of most prokaryotes (bacteria) is essential to the rapid cell division required for infection.

Part B:

What does the name Cyclin Dependent Kinase stand for?

Select one:

a. A protein important to the cell cycle that is dependent on DNA synthesis.

b. An enzyme that cuts DNA so that chromosomes can segregate.

c. An enzyme that phosphorylates other proteins using ATP only when the protein Cyclin is bound to the enzyme.

d. An enzyme that rolls along microtubules dragging a vesicle.

e. An enzyme that connects chromosomes to the spindle fiber.

Part C:

The Cell Cycle is divided into Mitosis, Cytokinesis, and Interphase. Mitosis can be ordered into the following phases:

Select one:

a. Prophase/Prometaphase/Metaphase/Anaphase/Telophase

b. Anaphase/Prometaphase/Metaphase/Prophase/Telophase

c. Metaphase/Anaphase/Telophase/Prophase/Prometaphase

d. Telophase/Prophase/Prometaphase/Metaphase/Anaphase

e. Anaphase/Telophase/Prophase/Prometaphase/Metaphase

Part D:

The Cell Cycle is divided into Mitosis, Cytokinesis, and Interphase. Interphase can be ordered into the following phases:

Select one:

a. S/G1/G2

b. G2/G1/S

c. G1/S/G2

d. G2/S/G1

e. G1/G2/S

If the diploid chromosome number is 12, each cell has as 6 x 10 -6 grms of DNA, how many chromosomes, chromatids and DNA would you find in the following stages of cell division of a cell. (Assume cytokinesis after anaphase)

Stage of Cell Division

# of Chromosomes

# of chromatids

Amount of DNA

Prophase of mitosis

Prophase of meiosis I

Metaphase of mitosis

Anaphase of mitosis

Metaphase of meiosis I

Anaphase of meiosis I

Telophase of mitosis

Telophase of meiosis I

Metaphase of meiosis II

Telophase of meiosis II

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