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Cells that demonstrate anchorage independence


A) exist in G0.
B) are primed to become metastatic.
C) closely monitor their progression through the cell cycle.
D) are benign tumors that are of little concern.

E) A) and B)
F) A) and C)

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The successful union of one male and one female gamete forms a new single cell known as a


A) chromatid.
B) spindle.
C) zygote.
D) gametocyte.

E) A) and C)
F) B) and C)

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Match the event or stage of mitosis with the appropriate description. -As new chromosomes reach the poles,the nuclear envelopes re-form,and the chromatin decondenses.


A) prophase
B) metaphase
C) anaphase
D) telophase
E) cytokinesis

F) D) and E)
G) A) and E)

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Chromosomes decondense and nuclear envelopes form during the ________ portion of mitosis.

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A cell has completed S phase and is preparing to divide via mitosis.How is the genetic material arranged in Gā‚‚ phase?

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During S phase the uncondensed chromosom...

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Which processes associated with meiosis ensure genetic diversity in offspring? Name two processes that promote variation and explain how they operate.

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There are three processes that allow for...

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Compare and contrast the incidence rate per 100,000 individuals versus deaths per 100,000 individuals for breast cancer in females and for prostate cancer in males presented in the infographic below.What does this suggest about the survivability of breast cancer and prostate cancer? Compare and contrast the incidence rate per 100,000 individuals versus deaths per 100,000 individuals for breast cancer in females and for prostate cancer in males presented in the infographic below.What does this suggest about the survivability of breast cancer and prostate cancer?

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The incidence rate per 100,000 individua...

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Which two processes work in conjunction to create genetic diversity and maintain chromosome number?


A) mitosis and meiosis
B) meiosis and independent assortment
C) binary fission and mitosis
D) fertilization and meiosis

E) C) and D)
F) None of the above

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If a plant has a total of 18 chromosomes,how many chromosomes would be present in each of its gametes?


A) 36
B) 18
C) 9
D) 6

E) A) and B)
F) A) and C)

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Sister chromatids are held together at a constriction point called a ________.

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All of the following contribute to genetic uniqueness EXCEPT


A) binary fission.
B) independent assortment.
C) crossing over.
D) random fertilization.

E) All of the above
F) B) and C)

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Cells spend the bulk of their time in the ________ stage of the cell cycle.

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According to the image below,during which phase of the cell cycle does the cell increase in size in preparation for division? According to the image below,during which phase of the cell cycle does the cell increase in size in preparation for division?   A)  Region 1 B)  Region 2 C)  Region 3 D)  Region 4


A) Region 1
B) Region 2
C) Region 3
D) Region 4

E) A) and C)
F) C) and D)

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Which of the following is a difference between binary fission and mitosis?


A) replication of the genetic material
B) breakdown of the nuclear envelope
C) cell growth and expansion
D) increase in cytoplasmic factors

E) B) and C)
F) A) and B)

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What is the significance of crossing over?


A) Two copies of the same chromosome can become part of the same gamete.
B) The resulting gametes will have novel gene combinations compared to their parent cells' gene combinations.
C) The bivalent chromosomes can exchange genetic material with other pairs of chromosomes.
D) The gametes that are produced will have twice as many chromosomes as the parent cells had.

E) A) and B)
F) A) and C)

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B

Match the event or stage of meiosis with the appropriate drawing. -Match the event or stage of meiosis with the appropriate drawing. -  A) prophase I B) metaphase I C) anaphase I D) telophase I and cytokinesis I E) prophase II F) metaphase II G) anaphase II H) telophase II and cytokinesis II


A) prophase I
B) metaphase I
C) anaphase I
D) telophase I and cytokinesis I
E) prophase II
F) metaphase II
G) anaphase II
H) telophase II and cytokinesis II

I) B) and E)
J) C) and F)

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Match the event or stage of meiosis with the appropriate drawing. -Match the event or stage of meiosis with the appropriate drawing. -  A) prophase I B) metaphase I C) anaphase I D) telophase I and cytokinesis I E) prophase II F) metaphase II G) anaphase II H) telophase II and cytokinesis II


A) prophase I
B) metaphase I
C) anaphase I
D) telophase I and cytokinesis I
E) prophase II
F) metaphase II
G) anaphase II
H) telophase II and cytokinesis II

I) B) and D)
J) F) and G)

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C

If crossing-over does not occur and homologous chromosome pairs are not independently assorted during meiosis I,resulting in all maternal chromosomes sorted to one cell while all paternal chromosomes are sorted to another cell,what would be the genetic results in the gametes produced at the end of meiosis II?


A) Twenty-five percent of the gametes would contain only maternal DNA and 75% of the gametes would contain only paternal DNA.
B) Seventy-five percent of the gametes would contain only maternal DNA and 25% of the gametes would contain only paternal DNA.
C) Fifty percent of the gametes would contain only maternal DNA and 50% of the gametes would contain only paternal DNA.
D) All gametes would contain equal amounts of maternal and paternal DNA.

E) None of the above
F) B) and D)

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C

The chromosomes in a homologous pair


A) both came from the organism's mother.
B) both came from the organism's father.
C) do not join during meiosis.
D) carry the same genes.

E) A) and B)
F) A) and C)

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Explain which of the three cell division processes (mitosis,meiosis,binary fission)is most complex and summarize why it is necessary to promote genetic diversity and maintain a constant chromosome number in organisms.

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Meiosis is the most complex of the three...

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