DNA, Cell Cycle, Mitosis and Meiosis

What is the purpose of DNA? (What is DNA's job?)

• creates instructions for all living things

• allows organisms to segregate

• prevents mutations from occurring

• contains the sugar and phosphate backbone

True or false: All living things (plants, animals, bacteria) share a genetic code?

• True

• False

The cycle where the cell spends most of its life is in...

• interphase

• mitosis

All of the following phases are part of interphase, EXCEPT

• G1

• S

• G2

• M

What occurs during the G1 phase?

• The cell gets ready to divide

• The cell grows and matures

• DNA replicated

What occurs during the S phase?

• The cell grows and matures

• DNA is replicated

• The cell gets ready to divide

What occurs during the G2 phase?

• The cells grows and matures

• DNA is replicated

• The cell gets ready to divide

Why is it important that DNA has been checked for mistakes before the cell divides?

• So that many cells can be replicated

• So that healthy cells are created

• So that the cytoplasm can divide equally

• So that DNA synthesis does not happen again

How is a tumor formed?

• The cell tells the body to do so

• ATP is not produced

• The cell continues to divide unregulated

• The tumor has been changed

Adenine pairs with...

• thymine

• uracil

• cytosine

• guanine