Question

The purpose of interphase of a cell cycle is:

A	to divide itself in half in order to facilitate growth and/or reproduction

B	to produce gametes

C	the 'living' phase of the cell, in which the cell obtains nutrients, grows, reads its DNA, and conducts other "normal" cell functions

D	to facilitate repairs from viruses and bacteria

The purpose of the mitotic phase of a cell cycle is:

A	to divide itself in half in order to facilitate growth and/or reproduction

B	to produce gametes

C	the 'living' phase of the cell, in which the cell obtains nutrients, grows, reads its DNA, and conducts other "normal" cell functions

D	to facilitate repairs from viruses and bacteria

Approximately what percentage of this time is devoted to interphase for the average cell in the human body?

A

10%

B

30%

C

70%

D

90%

Think about a group of cells that are undergoing very frequent cell divisions (e.g. cells that are part of a plant root tip). Suppose that you looked at 100 of these cells. How many of these cells would you expect to be in interphase as compared to a 'normal' body cell?

A	more than a normal body cell

B	less than a normal body cell

C	about the same as a normal body cell

D	none of these answers is correct

The main difference between mitosis and meiosis is:

A	mitosis only divides when the correct signals are present

B	mitosis produces haploid cells while meiosis produces diploid cells

C	meiosis occurs only once in a persons life time while mitosis produces indefinitely

D	mitosis produces diploid cells while meiosis produces haploid cells

How are mitosis and meiosis similar?

A	both produces haploid cells

B	both involve crossing over to increase genetic diversity

C	both use a mitotic spindle to organize chromosomes and facilitate sister chromatid separation

D	both are performed by all eukaryotic cells

At some points during a cell's life, its genetic material is "unraveled" and diffuse (see Cell A below). At other points during times during a cell's life, its genetic material becomes compacted so that you can see individual chromosomes (see Cell B below). Which of the cells shows what the genetic material looks like during interphase? (Type an "A" or "B" in the blank)

Answer 1

-The purpose of interphase of a cell cycle is - the 'living' phase of the cell, in which the cell obtains nutrients, grows, reads its DNA, and conducts other "normal" cell functions.

So, the correct option is (C).

-The purpose of the mitotic phase of a cell cycle is- to divide itself in half in order to facilitate growth and/or reproduction.

So, the correct option is (A).

-Percentage of time devoted to interphase for the average cell in the human body is 90%.

So, the correct option is (D).

-Number of cells expected to be in interphase as compared to a 'normal' body cell is that cells in interphase are more than a normal body cell.

So, the correct option is (A).

-The main difference between mitosis and meiosis is-mitosis produces diploid cells while meiosis produces haploid cells.

So, the correct option is (D).

-Mitosis and meiosis are similar in a way that both use a mitotic spindle to organize chromosomes and facilitate sister chromatid separation.

So, the correct option is (C).

The cell type- A shows that the genetic material looks like during interphase.

Cell type 2 -Cells in Prophase of mitosis

Cell type 5-Cells is Anaphase of mitosis

Cell type 6-Cells in Telophase of mitosis

Cell type 4-Cells in Metaphase of mitosis

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