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HDFS Final Exam: Questions & Proper Solutions
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HDFS Final Exam: Questions & Proper Solutions
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HDFS Final Exam: Questions & Proper SolutionsA cell entering mitosis with 32 chromosomes will produce daughter cells with
__________.
* None of the listed responses is correct.
* 16 chromosomes
* 64 chromosomes
* 32 pairs of chromosomes
* 64 pairs of chromosomes Right Ans - None of the listed responses is
correct.
A biochemist measured the amount of DNA in cells growing in the laboratory
and found that the quantity of DNA in the cells doubled __________.
* between the G1 and G2 phases
* between prophase and anaphase
* during the M phase of the cell cycle
* between the G2 phase and prophase
* between anaphase and telophase Right Ans - between G1 and G2 phases
One event occurring during prophase is __________.
* the beginning of the formation of a mitotic spindle
* the synthesis of a new nuclear envelope
* the alignment of chromosomes in a single plane
* cytokinesis
* separation of sister chromatids Right Ans - the beginning of the
formation of a mitotic spindle
The cleavage furrow forms during which stage of mitosis and cell division of
an animal cell?
* Cytokinesis
* Anaphase
* Telophase
* Metaphase
* Prophase Right Ans - Cytokinesis
,During binary fission of a bacterium, __________.
* origins of replication move apart
* chromosomes are separated through attachment to a mitotic spindle
* a small daughter cell buds from a large parent cell
* genetic material is acquired from another bacterium
* the nuclear envelope fragments Right Ans - origins of replication move
apart
When not engaged in the processes leading to cell division, how many
chromosomes from your mother are present in the nucleus of each of your
somatic cells?
* 23
* 46
* 92
* 184
* None of the listed responses is correct. Right Ans - 23
You would be unlikely to see which of the following human cells dividing?
* Nerve cell
* Skin cell
* Cancer cell
* Embryonic cell
* Cell of the intestinal lining Right Ans - Nerve cell
Which of the following does not occur during mitosis?
* Duplication of chromosomes
* Movement of chromosomes toward opposite poles of the cell
* Condensation of chromatin
* Separation of chromatids
* Alignment of chromosomes along the cell's equatorial plane Right Ans -
Duplication of chromosomes
The function of mitosis and cytokinesis is to produce daughter cells that
__________.
, * are genetically identical to the parent cell
* have the same number of chromosomes as the parent cell but unique
genetic content
* have a random assortment of maternal and paternal chromosomes
* have the same number of chromatids as the parent cell had chromosomes
* None of the listed responses is correct. Right Ans - are genetically
identical to the parent cell
During interphase, the genetic material of a typical eukaryotic cell is __________.
* dispersed in the nucleus as long strands of chromatin
* dispersed in the cytoplasm as long strands of chromatin
* condensed, and the chromosomes are often visible under the light
microscope
* attached to microtubule spindle fibers
* transported through the nuclear pores Right Ans - dispersed in the
nucleus as long strands of chromatin
Sister chromatids are __________.
* identical copies of a chromosome
* found only in aberrant chromosomes
* held together by the centrioles
* the bacterial equivalent of eukaryotic chromosomes
* present throughout the cell cycle Right Ans - identical copies of a
chromosome
The complex of DNA and protein that makes up a eukaryotic chromosome is
properly called __________.
* chromatin
* a chromatid
* a centromere
* actin
* a centrosome Right Ans - chromatin
Observations of cancer cells in culture support the hypothesis that cancer cells
__________.
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