Mitosis

Front

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...

Back

8 chromosomes.

Answer explanation

After mitosis, the number of chromosomes in daughter cells remains the same as in the parent cell. Since fruit fly body cells have 8 chromosomes, each daughter cell will also have 8 chromosomes.

Front

Structure (a) is a ____.

Back

chromosome

Answer explanation

Structure (a) is a chromosome because it represents a complete DNA molecule that contains genetic information. Chromatids are the duplicated forms of a chromosome, and a centromere is the region where two chromatids are joined.

Front

Structure (b) is a ____.

Back

centromere

Answer explanation

Structure (b) is a centromere, which is the region of a chromosome where the two sister chromatids are joined. It plays a crucial role during cell division, ensuring proper segregation of chromosomes.

Front

Structure (c) is a ____.

Back

chromatid

Answer explanation

Structure (c) is a chromatid because it represents one half of a duplicated chromosome, which is connected at the centromere. Chromatids are formed during the S phase of the cell cycle when DNA is replicated.

Front

Name the phase:

Back

Anaphase

Answer explanation

Anaphase is the phase where sister chromatids are pulled apart to opposite poles of the cell. This distinguishes it from the other phases, where chromosomes are aligned or the cell is preparing to divide.

Front

Name the phase:

Back

Anaphase

Answer explanation

Anaphase is the phase where sister chromatids are pulled apart to opposite poles of the cell. This distinguishes it from the other phases, where chromosomes are aligned or the cell is preparing to divide.

Front

What is the next phase of mitosis?

Back

Telophase

Answer explanation

The next phase of mitosis after anaphase is telophase. During telophase, the chromosomes begin to de-condense, and the nuclear envelope re-forms, leading to the final stages of cell division.

Front

What is the next phase of mitosis?

Back

Metaphase

Answer explanation

The next phase of mitosis after prophase is metaphase, where chromosomes align at the cell's equatorial plane, preparing for separation. This is a crucial step before moving into anaphase.

Front

What is the next phase of mitosis?

Back

Anaphase

Answer explanation

The next phase of mitosis after metaphase is anaphase, where the sister chromatids are pulled apart to opposite poles of the cell, ensuring each new cell will receive an identical set of chromosomes.

Front

Name the previous phase.

Back

Metaphase

Answer explanation

The previous phase before Metaphase is Prophase. During Prophase, chromosomes condense and become visible, and the nuclear envelope begins to break down, setting the stage for Metaphase.