Quiz #1 - Cell division and cancer

Before cell division takes place, DNA has to make an exact copy of itself. This is called

• duplication

• fertilization

• hybridization

• replication

What stage is shown in the picture?

• prophase in mitosis

• prophase I in meiosis

• prophase II in meiosis

• interphase

What phase of interphase does DNA replicate?

• G1

• S

• G2

• G0

Which of the following refer to the product of meiosis (you may choose more than one)?

• haploid

• diploid

• somatic cells

• gametes

Which of the following refer to the product of mitosis (you may choose more than one)?

• haploid

• diploid

• gametes

• somatic cell

How many chromosomes are found in a human adult egg cell?

• 23

• 46

• 23 pairs

• 46 pairs

Meiosis results in

• two unique daughter cells

• four identical daughter cells

• two identical daughter cells

• four unique daughter cells

What type of cells have not begun to differentiate into specialized cells?

• gametes

• stem cells

• somatic cells

• neurons

When meiosis is complete, how does DNA in the daughter cells compare to the DNA from the original parent cell?

• half as much and genetically the same

• twice as much and genetically the same

• half as much and genetically different

• twice as much and genetically different

Crossing over occurs in

• prophase of mitosis

• prophase I of meiosis

• interphase

• during all stages of meiosis I