Question 1

What disease can be defined as resulting from a breakdown in a cell's ability to regulate its own division?

Accepted Answer

A) multiple sclerosis 
B) cancer 
C) emphysema 
D) diabetes 
E) heart disease 
A) multiple sclerosis 
B) cancer 
C) emphysema 
D) diabetes 
E) heart disease

Question 2

The sunburst arrangement of microtubules that forms around each centrosome during early prophase is called a(n)________.

Accepted Answer

A) sunburst 
B) arnost 
C) aster 
D) astral fiber 
E) barrel 
A) sunburst 
B) arnost 
C) aster 
D) astral fiber 
E) barrel

Question 3

The Holliday junction recombination intermediate is not a static structure because the linkage point may move in one direction or another,a process known as _________.

Accepted Answer

A) slippage 
B) intrusion 
C) branch fusion 
D) branch migration 
E) extrusion 
A) slippage 
B) intrusion 
C) branch fusion 
D) branch migration 
E) extrusion

Question 4

What is the name of the enzyme that responds to the lack of bipolar tension when both chromatids are attached to microtubules from the same spindle pole and helps to correct the abnormality?

Accepted Answer

A) streptokinase 
B) Aurora B kinase 
C) Cdc kinase 
D) protein kinase 
E) tubulin kinase 
A) streptokinase 
B) Aurora B kinase 
C) Cdc kinase 
D) protein kinase 
E) tubulin kinase

Question 5

Cells that have stopped dividing and are arrested in a stage preceding the initiation of DNA synthesis are said to be in a ______ state.

Accepted Answer

A) G1 phase 
B) S phase 
C) G2 phase 
D) M phase 
E) G0 phase 
A) G1 phase 
B) S phase 
C) G2 phase 
D) M phase 
E) G0 phase

Question 6

What word below characterizes the adult generation that is produced after zygotic meiosis?

Accepted Answer

A) diploid 
B) haploid 
C) enormous 
D) polyploid 
E) aneuploid 
A) diploid 
B) haploid 
C) enormous 
D) polyploid 
E) aneuploid

Question 7

Which of the following is involved with the machinery that links kinetochores to dynamic microtubules?

Accepted Answer

A) motor proteins 
B) a rod-shaped protein called Ndc80 
C) the KMN network 
D) curling microtubule protofilaments 
E) All of these are correct. 
A) motor proteins 
B) a rod-shaped protein called Ndc80 
C) the KMN network 
D) curling microtubule protofilaments 
E) All of these are correct.

Question 8

What property below do stem cells not share with most cells?

Accepted Answer

A) They exhibit asymmetric cell division. 
B) They do not replicate their DNA before cell division. 
C) The two daughter cells have different properties or fates. 
D) They exhibit symmetric cell division. 
E) They exhibit asymmetric cell division and the two daughter cells have different properties or fates. 
A) They exhibit asymmetric cell division. 
B) They do not replicate their DNA before cell division. 
C) The two daughter cells have different properties or fates. 
D) They exhibit symmetric cell division. 
E) They exhibit asymmetric cell division and the two daughter cells have different properties or fates.

Question 9

In fission yeast cells,at which sites is replication initiated?

Accepted Answer

A) at randomly selected sites 
B) at sites where histones bind 
C) at sites where prereplication complexes have previously assembled 
D) at sites where RNA polymerase binds 
E) at sites that bind nucleosomes bind 
A) at randomly selected sites 
B) at sites where histones bind 
C) at sites where prereplication complexes have previously assembled 
D) at sites where RNA polymerase binds 
E) at sites that bind nucleosomes bind

Question 10

What initiates the disassembly of the three major components of the nuclear envelope?

Accepted Answer

A) phosphorylation of key substrates by mitotic kinases,particularly cyclin B-Cdk1 
B) dephosphorylation of key substrates by mitotic phosphatases,particularly cyclin B-Cdk1 
C) a cascade begun by ATP synthase 
D) phosphorylation of key substrates by mitotic phosphatases,particularly cyclin B-Cdk 
E) methylation of key substrates by mitotic kinases,particularly cyclin B-Cdk1 
A) phosphorylation of key substrates by mitotic kinases,particularly cyclin B-Cdk1 
B) dephosphorylation of key substrates by mitotic phosphatases,particularly cyclin B-Cdk1 
C) a cascade begun by ATP synthase 
D) phosphorylation of key substrates by mitotic phosphatases,particularly cyclin B-Cdk 
E) methylation of key substrates by mitotic kinases,particularly cyclin B-Cdk1

Question 11

The nuclear pore complexes are disassembled _________.

Accepted Answer

A) as the interactions between nucleoporin complexes are disrupted and the proteins dissociate into the surrounding medium 
B) by depolymerization of the lamin filaments 
C) as their integrity is disrupted mechanically as holes are torn in the complexes by cytoplasmic dyneins associated with the outer nuclear membrane 
D) by cytoplasmic dyneins 
E) by cytoplasmic microtubules and microfilamnets 
A) as the interactions between nucleoporin complexes are disrupted and the proteins dissociate into the surrounding medium 
B) by depolymerization of the lamin filaments 
C) as their integrity is disrupted mechanically as holes are torn in the complexes by cytoplasmic dyneins associated with the outer nuclear membrane 
D) by cytoplasmic dyneins 
E) by cytoplasmic microtubules and microfilamnets

Question 12

The first transition point in yeast cells that commits the cells to entering S phase occurs just before the end of ___ and is called _______.

Accepted Answer

A) G2,START 
B) G1,MPF 
C) G2,MPF 
D) G1,BEGIN 
E) G1,START 
A) G2,START 
B) G1,MPF 
C) G2,MPF 
D) G1,BEGIN 
E) G1,START

Question 13

The stages through which a cell passes from one cell division to the next constitute the _________.

Accepted Answer

A) cell cycle 
B) life cycle 
C) biocycle 
D) energy cycle 
E) regeneration cycle 
A) cell cycle 
B) life cycle 
C) biocycle 
D) energy cycle 
E) regeneration cycle

Question 14

What is the average length of M phase?

Accepted Answer

A) about 1 hour 
B) about 10 minutes 
C) about 10 hours 
D) 4 hours and 35 minutes 
E) about a day 
A) about 1 hour 
B) about 10 minutes 
C) about 10 hours 
D) 4 hours and 35 minutes 
E) about a day

Question 15

What is responsible for holding sister chromatids together after replication? It holds the two chromatids together through G2 and into mitosis.

Accepted Answer

A) compressin 
B) cohesin 
C) condensin 
D) connexin 
E) contractin 
A) compressin 
B) cohesin 
C) condensin 
D) connexin 
E) contractin

Question 16

Cells that have a single set of chromosomes are said to have a _______ number of chromosomes; cells that contain two full sets of paired chromosomes are said to have a ______ number of chromosomes.

Accepted Answer

A) diploid,haploid 
B) haploid,diploid 
C) diploid,diploid 
D) haploid,haploid 
E) monoploid,polyploidy 
A) diploid,haploid 
B) haploid,diploid 
C) diploid,diploid 
D) haploid,haploid 
E) monoploid,polyploidy

Question 17

What external stimulation is required by mammalian cells to progress through the cycle after they have passed the restriction point?

Accepted Answer

A) the presence of steroid hormones in their culture medium 
B) the presence of Na+ ions in their culture medium 
C) the presence of growth factors in their culture medium 
D) no external stimulation is required after the restriction point is passed 
E) the presence of vitamins in their culture medium 
A) the presence of steroid hormones in their culture medium 
B) the presence of Na+ ions in their culture medium 
C) the presence of growth factors in their culture medium 
D) no external stimulation is required after the restriction point is passed 
E) the presence of vitamins in their culture medium

Question 18

As revealed by recent studies,which organelles do not seem to remain intact during mitosis?

Accepted Answer

A) mitochondria 
B) Golgi complex 
C) ER 
D) peroxisomes 
E) chloroplasts 
A) mitochondria 
B) Golgi complex 
C) ER 
D) peroxisomes 
E) chloroplasts

Question 19

At metaphase I,the two homologous chromosomes of each bivalent are connected to spindle fibers from the _________.

Accepted Answer

A) same spindle pole 
B) opposite spindle poles 
C) the centromere of its neighboring chromosome 
D) the centromere of its homologue 
E) random centromeres of other chromosomes 
A) same spindle pole 
B) opposite spindle poles 
C) the centromere of its neighboring chromosome 
D) the centromere of its homologue 
E) random centromeres of other chromosomes

Question 20

On occasion,the two kinetochores of sister chromatids will become attached to microtubules from the same spindle pole; this condition is referred to as ________.

Accepted Answer

A) osteosarcoma 
B) systolic attachment 
C) syntelic attachment 
D) opposite chromatid attachment 
E) synthetisism 
A) osteosarcoma 
B) systolic attachment 
C) syntelic attachment 
D) opposite chromatid attachment 
E) synthetisism

What disease can be defined as resulting from a breakdown in a cell's ability to regulate its own division?

The sunburst arrangement of microtubules that forms around each centrosome during early prophase is called a(n)________.

The Holliday junction recombination intermediate is not a static structure because the linkage point may move in one direction or another,a process known as _________.

What is the name of the enzyme that responds to the lack of bipolar tension when both chromatids are attached to microtubules from the same spindle pole and helps to correct the abnormality?

Cells that have stopped dividing and are arrested in a stage preceding the initiation of DNA synthesis are said to be in a ______ state.

What word below characterizes the adult generation that is produced after zygotic meiosis?

Which of the following is involved with the machinery that links kinetochores to dynamic microtubules?

What property below do stem cells not share with most cells?

In fission yeast cells,at which sites is replication initiated?

What initiates the disassembly of the three major components of the nuclear envelope?

The nuclear pore complexes are disassembled _________.

The first transition point in yeast cells that commits the cells to entering S phase occurs just before the end of _ and is called _____.

The stages through which a cell passes from one cell division to the next constitute the _________.

What is the average length of M phase?

What is responsible for holding sister chromatids together after replication? It holds the two chromatids together through G₂ and into mitosis.

Cells that have a single set of chromosomes are said to have a _ number of chromosomes; cells that contain two full sets of paired chromosomes are said to have a number of chromosomes.

What external stimulation is required by mammalian cells to progress through the cycle after they have passed the restriction point?

As revealed by recent studies,which organelles do not seem to remain intact during mitosis?

At metaphase I,the two homologous chromosomes of each bivalent are connected to spindle fibers from the _________.

On occasion,the two kinetochores of sister chromatids will become attached to microtubules from the same spindle pole; this condition is referred to as ________.

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics,enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

Exam 14: Cellular Reproduction

What disease can be defined as resulting from a breakdown in a cell's ability to regulate its own division?

The sunburst arrangement of microtubules that forms around each centrosome during early prophase is called a(n)________.

The Holliday junction recombination intermediate is not a static structure because the linkage point may move in one direction or another,a process known as _________.

What is the name of the enzyme that responds to the lack of bipolar tension when both chromatids are attached to microtubules from the same spindle pole and helps to correct the abnormality?

Cells that have stopped dividing and are arrested in a stage preceding the initiation of DNA synthesis are said to be in a ______ state.

What word below characterizes the adult generation that is produced after zygotic meiosis?

Which of the following is involved with the machinery that links kinetochores to dynamic microtubules?

What property below do stem cells not share with most cells?

In fission yeast cells,at which sites is replication initiated?

What initiates the disassembly of the three major components of the nuclear envelope?

The nuclear pore complexes are disassembled _________.

The first transition point in yeast cells that commits the cells to entering S phase occurs just before the end of ___ and is called _______.

The stages through which a cell passes from one cell division to the next constitute the _________.

What is the average length of M phase?

What is responsible for holding sister chromatids together after replication? It holds the two chromatids together through G2 and into mitosis.

Cells that have a single set of chromosomes are said to have a _______ number of chromosomes; cells that contain two full sets of paired chromosomes are said to have a ______ number of chromosomes.

What external stimulation is required by mammalian cells to progress through the cycle after they have passed the restriction point?

As revealed by recent studies,which organelles do not seem to remain intact during mitosis?

At metaphase I,the two homologous chromosomes of each bivalent are connected to spindle fibers from the _________.

On occasion,the two kinetochores of sister chromatids will become attached to microtubules from the same spindle pole; this condition is referred to as ________.

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics,enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

The first transition point in yeast cells that commits the cells to entering S phase occurs just before the end of _ and is called _____.

What is responsible for holding sister chromatids together after replication? It holds the two chromatids together through G₂ and into mitosis.

Cells that have a single set of chromosomes are said to have a _ number of chromosomes; cells that contain two full sets of paired chromosomes are said to have a number of chromosomes.