Question 1

The last stage in the cell cycle is ________; this consists of ________,which separates the replicated DNA,and ________,which divides and portions the contents of the cell into two new daughter cells.

Accepted Answer

cell division; mitosis; cytokinesis

Question 2

Homologous chromosomes

Accepted Answer

A)   are only found in bacterial cells.
B)   are only in the cell during S phase.
C)   consist of a maternal and paternal copy of each chromosome.
D)   consist of six sister chromatids that are held together at the centrosome. C

Question 3

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

Accepted Answer

centromere

Question 4

In genetic engineering,molecular biologists often combine segments of DNA from two separate organisms.This is an example of genetic recombination that occurs in a laboratory setting.Which of the following is a form of genetic recombination that occurs naturally within cells?

Accepted Answer

A)   mitosis
B)   independent assortment
C)   crossing over
D)   asexual reproduction

Question 5

Which of the following statements is supported by the infographic shown below?

Accepted Answer

A)   Though there is more than double the chance of a female getting breast cancer,it is more likely that a female who has lung and bronchus cancer would die from her disease.Males are almost three times more likely to die from having lung and bronchus cancer than from having prostate cancer.
B)   A female is twice as likely to die from thyroid cancer than from uterine cancer.
C)   A male is three times more likely to die from non-Hodgkin lymphoma than from having esophageal cancer.
D)   Both males and females are four times more likely to die of leukemia than from having pancreatic cancer.

Question 6

Design an experiment testing the hypothesis that increased exposure of a sexually reproducing population to BPA will result in an increase in the number of offspring who have an extra chromosome or who are missing one of their chromosomes.Use the following materials and abilities: BPA,a placebo,1,500 lab mice,and the ability to extract gametes from the mice and examine their chromosome number.Indicate in which phase of meiosis the error is most likely to occur.

Accepted Answer

The answer of Design an experiment testing the hypothesis that...

Question 7

Which term is best associated with a synapsed pair of homologous chromosomes?

Accepted Answer

A)   a pair of sister chromatids attached at the centromere
B)   unpackaged DNA
C)   a tetrad
D)   the mitotic spindle

Question 8

A replicated chromosome consists of ________ sister chromatid(s).

Accepted Answer

A)   1
B)   2
C)   4
D)   6

Question 9

The processes of mitosis,meiosis,and binary fission all

Accepted Answer

A)   generate haploid gametes.
B)   occur in eukaryotic and prokaryotic cells.
C)   are used to produce daughter cells.
D)   generate clones.

Question 10

When everything proceeds without error,the process of ________ produces ________ daughter cells that are genetically identical to the mother cell,while the process of ________ produces ________ daughter cells that have half the genetic information present in the mother cell.

Accepted Answer

The answer of When everything proceeds without error,the process of...

Question 11

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

Accepted Answer

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

Question 12

Cancers are groups of cells that divide rapidly and uncontrollably.Thus,cancer cells

Accepted Answer

A)   are always in the G0 phase.
B)   never enter the cell cycle.
C)   have a relatively short G1 phase.
D)   are stuck at the metaphase plate.

Question 13

Describe the two structures seen below.When would they most likely be present in the cell cycle?

Accepted Answer

The answer of Describe the two structures seen below.When would...

Question 14

Which of the following is NOT a factor that influences a cell's progression through the cell cycle?

Accepted Answer

A)   gametes
B)   cell cycle regulatory molecules
C)   hormones
D)   growth factors

Question 15

Model organisms (like mice)used in the study of genetic disease

Accepted Answer

A)   are selected strictly for ethical reasons.
B)   cannot be trusted since they are very different from human cells.
C)   should either be mice or bacteria.
D)   may accurately reflect how diseases like cancer occur in humans.

Question 16

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

Accepted Answer

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

Question 17

What is the significance of crossing over?

Accepted Answer

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.

Question 18

Chromosomes are lined up at the middle of the cell during the ________ portion of cell division.

Accepted Answer

A)   metaphase
B)   anaphase
C)   interphase
D)   telophase

Question 19

Which of the following foods is MOST likely to contain haploid cells?

Accepted Answer

A)   a sirloin steak
B)   an apple
C)   a stalk of celery
D)   an egg

Question 20

Describe the G₀ phase of the cell cycle.Provide an example of what type of cell would enter the G₀ stage and propose why this cell would enter the G₀ phase.

Accepted Answer

The answer of Describe the G₀ phase of the cell...

Exam 6: Cell Division

The last stage in the cell cycle is ; this consists of ,which separates the replicated DNA,and ,which divides and portions the contents of the cell into two new daughter cells.

Homologous chromosomes

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

In genetic engineering,molecular biologists often combine segments of DNA from two separate organisms.This is an example of genetic recombination that occurs in a laboratory setting.Which of the following is a form of genetic recombination that occurs naturally within cells?

Which of the following statements is supported by the infographic shown below?

Which term is best associated with a synapsed pair of homologous chromosomes?

A replicated chromosome consists of ________ sister chromatid(s) .

The processes of mitosis,meiosis,and binary fission all

When everything proceeds without error,the process of produces daughter cells that are genetically identical to the mother cell,while the process of produces daughter cells that have half the genetic information present in the mother cell.

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

Cancers are groups of cells that divide rapidly and uncontrollably.Thus,cancer cells

Describe the two structures seen below.When would they most likely be present in the cell cycle?

Which of the following is NOT a factor that influences a cell's progression through the cell cycle?

Model organisms (like mice) used in the study of genetic disease

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

What is the significance of crossing over?

Chromosomes are lined up at the middle of the cell during the ________ portion of cell division.

Which of the following foods is MOST likely to contain haploid cells?

Describe the G₀ phase of the cell cycle.Provide an example of what type of cell would enter the G₀ stage and propose why this cell would enter the G₀ phase.

Exam 6: Cell Division

The last stage in the cell cycle is ________; this consists of ________,which separates the replicated DNA,and ________,which divides and portions the contents of the cell into two new daughter cells.

Homologous chromosomes

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

In genetic engineering,molecular biologists often combine segments of DNA from two separate organisms.This is an example of genetic recombination that occurs in a laboratory setting.Which of the following is a form of genetic recombination that occurs naturally within cells?

Which of the following statements is supported by the infographic shown below?

Which term is best associated with a synapsed pair of homologous chromosomes?

A replicated chromosome consists of ________ sister chromatid(s) .

The processes of mitosis,meiosis,and binary fission all

When everything proceeds without error,the process of ________ produces ________ daughter cells that are genetically identical to the mother cell,while the process of ________ produces ________ daughter cells that have half the genetic information present in the mother cell.

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

Cancers are groups of cells that divide rapidly and uncontrollably.Thus,cancer cells

Describe the two structures seen below.When would they most likely be present in the cell cycle?

Which of the following is NOT a factor that influences a cell's progression through the cell cycle?

Model organisms (like mice) used in the study of genetic disease

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

What is the significance of crossing over?

Chromosomes are lined up at the middle of the cell during the ________ portion of cell division.

Which of the following foods is MOST likely to contain haploid cells?

Describe the G0 phase of the cell cycle.Provide an example of what type of cell would enter the G0 stage and propose why this cell would enter the G0 phase.

The last stage in the cell cycle is ; this consists of ,which separates the replicated DNA,and ,which divides and portions the contents of the cell into two new daughter cells.

When everything proceeds without error,the process of produces daughter cells that are genetically identical to the mother cell,while the process of produces daughter cells that have half the genetic information present in the mother cell.

Describe the G₀ phase of the cell cycle.Provide an example of what type of cell would enter the G₀ stage and propose why this cell would enter the G₀ phase.