B.5(A) Quiz 2 Cell Cycle & DNA Replication

Arrange the following models in order of a cell progressing through Mitosis.

• 
• 
• 
• 

The life cycle of a frog is illustrated in the diagram. Which statement best explains how the cell cycle is important to the life cycle of the frog?

• It enables frogs to produce tadpoles that are clones.

• It allows frogs to grow, develop, and reproduce.

• It prevents overproduction of frog offspring.

• It ensures the best adapted frogs survive and pass on traits to offspring.

• It ensures there will be variation in the gametes.

The diagram shows the major stages of the cell cycle and the percentage of time spent in

each phase. Place the names of the phases in the correct spot and underneath place the correct statement on the importance of that phase.

c

d

e

f

aging and processes are stopping

crossing over occure

Mitosis

division of the nucleus

grow, metabolic process, replicate DNA

Interphase

People who have leukemia, a cancer that affects white blood cells, are often given Cytarabine.

This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?

• G₁ phase

• S phase

• G_{2 phase}

• M phase

• Cytokinesis

Looking at the diagram, Identify the correct process that is being carried out, what phase of mitosis does this process occur in and what is the product of this process?

g

h

i

Two identical DNA double helixes

Transcription

DNA Replication

Cytokinesis

S phase

A single stranded mRNA

Translation

1 complementary strand

M phase

Meiosis