Cell Cycle

Question 1

What is the first stage in the cell cycle?

Answer 1

Interphase

Question 2

Chromatin in the nucleus condenses to form chromosomes. The pairs of centrioles move to opposite sides of the nucleus. Spindle fibers form a bridge between the ends of the cell. The nuclear envelope breaks down.

Answer 2

Mitosis- Prophase

Question 3

The chromosomes line up across the center of the cell. Each chromosome attaches to a spindle fiber at its centromere.

Answer 3

Mitosis - Metaphase

Question 4

The centromeres spilt. The two chromatids separate, and each chromatid becomes a new chromosomes. The new chromosomes move to opposite ends of the cell. The cell stretches out as the opposite ends are pushed apart.

Answer 4

Mitosis- Anaphase

Question 5

The chromosomes begin to stretch out and lose there rod-like appearance. A new nuclear envelope forms around each region of chromosomes.

Answer 5

Mitosis- Telophase

Question 6

The cell membrane pinches in sound the middle of the cell. The cell splits in two. Each daughter cell ends up with identical set of chromosomes and about half the organelles.

Answer 6

Cytokinesis

Question 7

The regular sequence of growth and division that cells undergo

Answer 7

Cell cycle

Question 8

What are the three things that happen in interphase?

Answer 8

1. Cell grows to full size
2. Copies DNA
3. Prepares for division

Question 9

What forms in plant cells in the middle of the cell during Cytokinesis?

Answer 9

Cell plate

Question 10

What are the two side of the DNA ladder made of?

Answer 10

Deoxyribose and phosphates

Question 11

What are the four nitrogen bases in DNA?

Answer 11

Adenine, thymine, guanine, and cytosine

Question 12

What does Adenine pair up with in DNA?

Answer 12

Thymine

Question 13

What does Guanine pair up with in DNA?

Answer 13

Cytosine

Question 14

What does DNA do to replicate?

Answer 14

Unwind and separate then match up with other particles of the DNA