Question 1

Examine the micrographs below to answer the following question.     The cell in micrograph "III"  is at which stage of the cell cycle?

Accepted Answer

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

Question 2

New alleles arise by _____.

Accepted Answer

A)  crossing over 
B)  mutation 
C)  independent assortment 
D)  sexual reproduction 
E)  asexual reproduction 
A)  crossing over 
B)  mutation 
C)  independent assortment 
D)  sexual reproduction 
E)  asexual reproduction B

Question 3

Paired homologous chromosomes are found at the center of the cell during _____ of meiosis.

Accepted Answer

A)  metaphase I 
B)  telophase I 
C)  prophase II 
D)  metaphase II 
E)  anaphase II 
A)  metaphase I 
B)  telophase I 
C)  prophase II 
D)  metaphase II 
E)  anaphase II A

Question 4

Accumulations of cells that divide uncontrollably are called ______.

Accepted Answer

A)  oncogenes 
B)  proto-oncogenes 
C)  tumor 
D)  checkpoints 
E)  descendant cells 
A)  oncogenes 
B)  proto-oncogenes 
C)  tumor 
D)  checkpoints 
E)  descendant cells

Question 5

Match between columns
                        Premises: prophase I
prophase
GS1U1B11S1U1B0
GS1U1B12S1U1B0
anaphase I
after telophase in mitosis is complete
metaphase
S
metaphase II
after telophase II in meiosis is complete
prophase II
telophase II

Accepted Answer

The Answer of 46 and 92 and 108 and 23 is...

Question 6

How do microtubules separate chromosomes during anaphase?

Accepted Answer

A)  Microtubules pull chromosomes to opposite poles of the cell. 
B)  Microtubules push chromosomes to opposite poles of the cell. 
C)  Microtubules push and pull chromosomes to separate poles of the cell. 
D)  Microtubules attach to telomeres and pull chromosomes to opposite poles of the cell. 
E)  Microtubules attach to telomeres and push chromosomes to opposite poles of the cell. 
A)  Microtubules pull chromosomes to opposite poles of the cell. 
B)  Microtubules push chromosomes to opposite poles of the cell. 
C)  Microtubules push and pull chromosomes to separate poles of the cell. 
D)  Microtubules attach to telomeres and pull chromosomes to opposite poles of the cell. 
E)  Microtubules attach to telomeres and push chromosomes to opposite poles of the cell.

Question 7

Sexual reproduction _____.

Accepted Answer

A)  leads to uniform characteristics in a population 
B)  results in new combinations of genetic traits 
C)  requires less tissue differentiation than asexual reproduction 
D)  produces genetic clones 
E)  produces genetic clones and requires less tissue differentiation than asexual reproduction 
A)  leads to uniform characteristics in a population 
B)  results in new combinations of genetic traits 
C)  requires less tissue differentiation than asexual reproduction 
D)  produces genetic clones 
E)  produces genetic clones and requires less tissue differentiation than asexual reproduction

Question 8

Meiosis may pause at which point in the cycle?

Accepted Answer

A)  after DNA is replicated in S phase but before meiosis I begins 
B)  after meiosis I is complete 
C)  after prophase II 
D)  before telophase II 
E)  after prophase I 
A)  after DNA is replicated in S phase but before meiosis I begins 
B)  after meiosis I is complete 
C)  after prophase II 
D)  before telophase II 
E)  after prophase I

Question 9

Which cells are least likely to proceed into G1?

Accepted Answer

A)  most skin cells 
B)  most liver cells 
C)  most intestinal cells 
D)  most red blood cells 
E)  most nerve cells 
A)  most skin cells 
B)  most liver cells 
C)  most intestinal cells 
D)  most red blood cells 
E)  most nerve cells

Question 10

In a human cell, there are _____after DNA replicates during S phase.

Accepted Answer

A)  92 chromosomes and 46 pairs of sister chromatids 
B)  46 chromosomes and 23 pairs of sister chromatids 
C)  23 chromosomes and 23 pairs of sister chromatids 
D)  92 chromosomes and 23 pairs of sister chromatids 
E)  40 chromosomes and 20 pairs of sister chromatids 
A)  92 chromosomes and 46 pairs of sister chromatids 
B)  46 chromosomes and 23 pairs of sister chromatids 
C)  23 chromosomes and 23 pairs of sister chromatids 
D)  92 chromosomes and 23 pairs of sister chromatids 
E)  40 chromosomes and 20 pairs of sister chromatids

Question 11

Which of the following is the proper sequence for mitosis? I. metaphase
II) telophase
III) prophase
IV) anaphase

Accepted Answer

A)  II, I, IV, III 
B)  I, II, III, IV 
C)  III, I, IV, II 
D)  IV, III, II, I 
E)  I, IV, II, III 
A)  II, I, IV, III 
B)  I, II, III, IV 
C)  III, I, IV, II 
D)  IV, III, II, I 
E)  I, IV, II, III

Question 12

Which energy source fuels cell division in animal cells?

Accepted Answer

A)  GTP 
B)  ATP 
C)  kinetic energy of Golgi body movement 
D)  glycerol 
E)  fat deposits 
A)  GTP 
B)  ATP 
C)  kinetic energy of Golgi body movement 
D)  glycerol 
E)  fat deposits

Question 13

The phase of the cell cycle during which cytoplasmic division occurs is _____.

Accepted Answer

A)  G1 
B)  S 
C)  G2 
D)  mitosis 
E)  cytokinesis 
A)  G1 
B)  S 
C)  G2 
D)  mitosis 
E)  cytokinesis

Question 14

An important advantage of sexual reproduction is related to _____.

Accepted Answer

A)  increasing production of offspring 
B)  avoiding predators 
C)  avoiding harmful mutations 
D)  producing offspring identical to the parents 
E)  having two sexes 
A)  increasing production of offspring 
B)  avoiding predators 
C)  avoiding harmful mutations 
D)  producing offspring identical to the parents 
E)  having two sexes

Question 15

An oncogene is a _____.

Accepted Answer

A)  normal gene that promotes mitosis 
B)  gene that codes for a growth factor that stimulates cell division 
C)  gene that codes for tumor suppressing proteins 
D)  mutated gene that results in tumor growth 
E)  mutated gene that results in cell cycle arrest 
A)  normal gene that promotes mitosis 
B)  gene that codes for a growth factor that stimulates cell division 
C)  gene that codes for tumor suppressing proteins 
D)  mutated gene that results in tumor growth 
E)  mutated gene that results in cell cycle arrest

Question 16

In what phase of the cell cycle does an actively dividing cell produce the proteins necessary for mitosis?

Accepted Answer

A)  G1 
B)  S 
C)  G2 
D)  prophase 
E)  G1 and G2 
A)  G1 
B)  S 
C)  G2 
D)  prophase 
E)  G1 and G2

Question 17

Abnormal cell division that does not pose a threat to surrounding tissues is termed _____.

Accepted Answer

A)  malignant 
B)  benign 
C)  metastatic 
D)  carcinogenic 
E)  repressed 
A)  malignant 
B)  benign 
C)  metastatic 
D)  carcinogenic 
E)  repressed

Question 18

When viewing a cell culture under a microscope, most cells would be in which phase of cell cycle?

Accepted Answer

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

Question 19

Match between columns
                        Premises: phase in which chromatids are not connected by centromeres
this is the last stage of interphase
when DNA is replicated
period in which metaphase occurs
period prior to mitosis
the beginning of interphase
phase that precedes cytoplasmic division
nuclear division
phase that follows DNA replication
phase during which the cell prepares for DNA replication

Accepted Answer

The Answer of S and GS1U1B12S1U1B0 and GS1U1B11S1U1B0 and mitosis is...

Question 20

HeLa cells were critical in _____.

Accepted Answer

A)  developing the polio vaccine 
B)  developing a cure for malaria 
C)  understanding fertilization 
D)  developing a cervical cancer vaccine 
E)  understanding cloning 
A)  developing the polio vaccine 
B)  developing a cure for malaria 
C)  understanding fertilization 
D)  developing a cervical cancer vaccine 
E)  understanding cloning

Exam 9: How Cells Reproduce

Examine the micrographs below to answer the following question. The cell in micrograph "III" is at which stage of the cell cycle?

New alleles arise by _____.

Paired homologous chromosomes are found at the center of the cell during _____ of meiosis.

Accumulations of cells that divide uncontrollably are called ______.

How do microtubules separate chromosomes during anaphase?

Sexual reproduction _____.

Meiosis may pause at which point in the cycle?

Which cells are least likely to proceed into G1?

In a human cell, there are _____after DNA replicates during S phase.

Which of the following is the proper sequence for mitosis? I. metaphase II) telophase III) prophase IV) anaphase

Which energy source fuels cell division in animal cells?

The phase of the cell cycle during which cytoplasmic division occurs is _____.

An important advantage of sexual reproduction is related to _____.

An oncogene is a _____.

In what phase of the cell cycle does an actively dividing cell produce the proteins necessary for mitosis?

Abnormal cell division that does not pose a threat to surrounding tissues is termed _____.

When viewing a cell culture under a microscope, most cells would be in which phase of cell cycle?

HeLa cells were critical in _____.

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Photosynthesis

Releasing Chemical Energy

Dna Structure and Function

Gene Expression and Control

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Prokaryotes, Protists, and Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Animal Reproduction and Development

Plant Form and Function

Life Cycles of Flowering Plants

Filters

Which cells are least likely to proceed into G₁?