Cell ReproductionPart 1

1. What class of cells is reproduced during mitosis?

Germ cells Germ cells

Somatic cellsSomatic cells

Gametes Gametes

Haploid cells Haploid cells

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2. Activated M-phase-promoting factor (MPF) signals entry into which of the following mitotic cell cycle phases?

G1 G1

M phaseM phase

S phase S phase

G2 G2

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3. One cell that undergoes meiosis will yield how many independent cells?

3 3

44

2 2

1 1

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4. What is the name of the junction that joins chromosomes during genetic

re-assortment?

Kinetochore Kinetochore

Chiasma Chiasma

Metaphase plate Metaphase plate

Crossover region Crossover region

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5. One round of mitosis leads to an entirely new individual in which type

of organism?

Human Human

Single-cellularSingle-cellular

Snail Snail

Multi-cellular Multi-cellular

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6. Degradation of G1 cyclins leads to entry into which of the following

mitotic cell cycle phases?

M phase M phase

S phaseS phase

G2 G2

G1 G1

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7. In meiosis, the chiasma plays a similar role to which structure in

mitosis?

Mitotic spindle Mitotic spindle

CentromereCentromere

centrosome centrosome

microtubule microtubule

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8. The mitotic phase during which a cell actually physically divides into

two is called which of the following?

prophase prophase

CytokinesisCytokinesis

metaphase metaphase

anaphase anaphase

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9. Which of the following meiotic phases is the longest?

Telophase 2 Telophase 2

Prophase 1Prophase 1

Anaphase 2 Anaphase 2

Metaphase 1 Metaphase 1

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10. What class of cells are reproduced during meiosis?

Cancerous cells Cancerous cells

Germ cellsGerm cells

Somatic cells Somatic cells

Diploid cells Diploid cells

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11. Cellular reproduction is involved in all of the following processes except which?

Sexual reproduction Sexual reproduction

Protein degradationProtein degradation

Cell maintenance Cell maintenance

Development Development

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12. Which mitotic phase directly follows G1 of interphase?

Anaphase Anaphase

ProphaseProphase

Metaphase Metaphase

Cytokinesis Cytokinesis

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13. During which meiotic phase are sister chromatids separated?

Anaphase 1 Anaphase 1

Anaphase 2Anaphase 2

Metaphase 2 Metaphase 2

Metaphase 1 Metaphase 1

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14. Chromosomes are composed of what biological molecule?

Adenosine monophosphate Adenosine monophosphate

Deoxyribonucleic acid (DNA)

Deoxyribonucleic acid (DNA)Adenosine triphosphate Adenosine triphosphate

Carbohydrates Carbohydrates

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15. The two major phases of the cell cycle are which of the following?

M phase and S phase M phase and S phase

M phase and interphaseM phase and interphase

G1 and G2 G1 and G2

Prophase 1 and prophase 2 Prophase 1 and prophase 2

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16. Which of the following is not characteristic of a cell in mitotic

prophase?

Intact nucleus Intact nucleus

Metaphase plateMetaphase plate

Rearranged cytoskeleton Rearranged cytoskeleton

Condensed chromosomes Condensed chromosomes

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17. The number of distinct chromosomes in a cell is its _________ number

Single Single

HaploidHaploid

Chiasma Chiasma

Diploid Diploid

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18. Which class of microtubules is responsible for capturing chromosomes

during mitosis?

Astral Astral

KinetochoreKinetochore

Polar Polar

Radial Radial

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19. Interphase and M phase can be best summed up by which of the

following pairs of words?

Degradation and synthesis Degradation and synthesis

Copying and cleavingCopying and cleaving

Synthesizing and copying Synthesizing and copying

Separating and cleaving Separating and cleaving

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20. During which meiotic phase are maternal homologous pairs separated from

paternal homologous pairs?

Anaphase 2 Anaphase 2

Anaphase 1Anaphase 1

Metaphase 2 Metaphase 2

Metaphase 1 Metaphase 1

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21. What is the major event that marks a cell's entrance into mitotic

prometaphase?

Separation of sister chromatids Separation of sister chromatids

Disassembly of nuclear envelope Disassembly of nuclear envelope

Cell division Cell division

Metaphase plate formation Metaphase plate formation

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22. The number of homologous pairs in a cell is called its _________ number.

Hapolid Hapolid

DiploidDiploid

Chiasma Chiasma

Single Single

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23. Which phase of the cell cycle directly follows M phase?

S phase S phase

G2 G2

G1G1

G0 G0

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24. What major event marks a cell's entry into mitotic metaphase?

Separation of sister chromatids Separation of sister chromatids

Metaphase plate formationMetaphase plate formation

Disassembly of nuclear envelope Disassembly of nuclear envelope

Chromosome condensation Chromosome condensation

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25. A cell with a haploid number of 20 has which of the following dipliod numbers?

80 80

4040

10 10

2 2

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