Entrance Exam: Med Bio_Cell Division-Mitosis and Meiosis

The function of the mitotic cell cycle is to produce daughter cells that __________.

• have the same number of chromatids as the parent cell had chromosomes
• are genetically identical to the parent cell (assuming no mutation has occurred)
• have the same number of chromosomes as the parent cell but not the same genetic content
• have a random assortment of maternal and paternal chromosomes
• have none of the listed characteristics

Tags

NGSS.HS-LS1-4

Which of the following is false regarding sister chromatids?

• Sister chromatids are created when DNA is replicated.
• Sister chromatids form in the S-phase stage of the cell cycle.
• Both of the sister chromatids end up in the same daughter cell after cytokinesis has occurred.
• Sister chromatids are attached to one another at the centromere.
• Sister chromatids are separated during mitosis.

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NGSS.HS-LS1-4

The complex of DNA and protein that makes up a eukaryotic chromosome is properly called __________.

• a centromere
• a chromoplast
• chromatin
• a chromatid
• a centrosome

The region of a chromosome in which the two double strands of replicated DNA are held together is called __________.

• a centriole
• a centromere
• an aster
• chromatin
• a chromatid

The centromere is a region in which __________.

• microtubules are fastened to the centrioles during anaphase
• the new cell plate forms in telophase
• chromosomes become aligned during metaphase
• the chromosomes are connected to the cell plate in metaphase
• sister chromatids are attached to one another in prophase

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NGSS.HS-LS1-4

How many maternal chromosomes are present in a somatic human cell when it is not engaged in cell division?

• 23
• 46
• 92
• 184
• None of the listed responses is correct.

A cell entering the cell cycle with 32 chromosomes will produce two daughter cells, each with __________.

• 16 chromosomes
• 64 chromosomes
• 32 pairs of chromosomes
• 64 pairs of chromosomes
• none of the listed numbers of chromosomes

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NGSS.HS-LS1-4

"Cytokinesis" refers to __________.

• the movement of a cell from one place to another
• the reduction in the number of chromosomes
• the division of the nucleus
• the division of the entire cell
• the division of the cytoplasm

Tags

NGSS.HS-LS1-4

Chromatids are __________.

• held together by the centrioles
• composed of RNA
• found only in aberrant chromosomes
• identical copies of each other if they are part of the same duplicated chromosome
• the bacterial equivalent of eukaryotic chromosomes

If a cell contains 60 chromatids at the start of mitosis, how many chromosomes will be found in each daughter cell at the completion of the cell cycle?

• 60
• 15
• 30
• 45
• 120

Tags

NGSS.HS-LS1-4