Worksheet Mitosis And Cell Cycle PDF

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Worksheet Mitosis and Cell Cycle...

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MCB 2400

Discussion Problem

Week 1-A

1. Humans have ______ pairs of chromosomes. 2. Normal yeast cells have 4 chromosomes. At the end of mitosis, each daughter cell contains ______ chromosomes. 3. If a normal somatic cell from a certain diploid species contains 84 chromosomes, a sperm or an oocyte contains ______ chromosomes. 4. At the point in the cell cycle when mitosis begins: __________ A) The sister chromatids have separated into two identical chromosomes. B) DNA replication begins. C) Each chromosome consists of two identical chromatids joined at the centromere. D) Chromosome number is halved. 5. Chromosomes coil tightly around chromosomal proteins and condense during ________. 6. Correctly fill in the order of events of the cell cycle below (i.e. M, S, G1, G2) 7. During the cell cycle, replication of the genetic material takes place during which phase? 8. Explain how mitosis is critical for all living organisms.

9. What is apoptosis? How is apoptosis a fundamental opposite of mitosis?

MCB 2400

Discussion Problem

Week 2

1. After Meiosis I, the number of chromosomes in either daughter cell is ____ that of the parent. a) Half b) Double c) The same as d) Quadruple 2. After the second meiotic division, the number of chromosomes in each daughter cell is ____ that of the original parental cell. a) Half b) Double c) The same as d) Quadruple 3. Sperm and oocytes are: a) Haploid b) Diploid c) Polyploidy d) Aneuploidy 4. Which of following is true of meiosis? a) Two daughter cells result from one meiotic cycle (two divisions) b) Daughter cells are genetically identical to each other c) Daughter cells are haploid d) One division of the genetic material occurs 5. After meiosis, the number of chromosomes in each daughter cell is halved because meiosis has: a) Two cell divisions and two DNA replications b) Two cell divisions, but only one DNA replication c) One cell division and two DNA replications d) One cell division and one DNA replication 6. Give the # of chromosomes and the stage of meiosis OR mitosis (shaded is 16pat, unshaded is 16mat): A.

meta MI

B.

meta Mitosis

C. MII metaphase...