Question 1

How does securin get its name?

Accepted Answer

A) Securin secures chromosomes to the cell membrane. 
B) Securin secures the attachment between sister chromatids. 
C) Securin determines which substances can enter the nucleus and which cannot. 
D) Securin secures the binding of the kinetochore to the chromosome. 
E) Securin attaches kinetochores to the spindle. 
A) Securin secures chromosomes to the cell membrane. 
B) Securin secures the attachment between sister chromatids. 
C) Securin determines which substances can enter the nucleus and which cannot. 
D) Securin secures the binding of the kinetochore to the chromosome. 
E) Securin attaches kinetochores to the spindle.

Question 2

At meiosis 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 3

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

Question 4

The nuclear lamina is 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 its 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 microfilaments 
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 its 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 microfilaments

Question 5

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

Accepted Answer

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

Question 6

What activates condensin at the onset of mitosis?

Accepted Answer

A) Na+ ions 
B) phosphorylation of several of its subunits by the Cdk-cyclin that drives cells from G2 into mitosis 
C) phosphorylation of several of its subunits by the Cdk-cyclin that drives cells from G1 into mitosis 
D) phosphorylation of several of its subunits by the Cdk-cyclin that drives cells from G1 into S phase 
E) dephosphorylation of several of its subunits by the Cdk-cyclin that drives cells from G2 into mitosis 
A) Na+ ions 
B) phosphorylation of several of its subunits by the Cdk-cyclin that drives cells from G2 into mitosis 
C) phosphorylation of several of its subunits by the Cdk-cyclin that drives cells from G1 into mitosis 
D) phosphorylation of several of its subunits by the Cdk-cyclin that drives cells from G1 into S phase 
E) dephosphorylation of several of its subunits by the Cdk-cyclin that drives cells from G2 into mitosis

Question 7

Movement past the transition point near the end of G2 that moves cells on to mitosis requires cdc2 activation by _______.

Accepted Answer

A) Na+ ions 
B) mitotic cyclins 
C) ATP 
D) Na+-K+ ATPase 
E) mitotic chromatin 
A) Na+ ions 
B) mitotic cyclins 
C) ATP 
D) Na+-K+ ATPase 
E) mitotic chromatin

Question 8

Which of the following multiprotein complexes acts primarily during interphase to ubiquitinate proteins and target them for destruction by a proteasome?

Accepted Answer

A) SCF 
B) APC 
C) anaphase promoting complex 
D) both SCF and APC 
E) proteasomal activating complex 
A) SCF 
B) APC 
C) anaphase promoting complex 
D) both SCF and APC 
E) proteasomal activating complex

Question 9

What must happen in order for a cell to move from G0 to G1 phase?

Accepted Answer

A) It must divide. 
B) It must generate an external signal. 
C) It must receive a growth-promoting signal. 
D) It must divide and receive a growth-promoting signal. 
E) It must grow extremely large. 
A) It must divide. 
B) It must generate an external signal. 
C) It must receive a growth-promoting signal. 
D) It must divide and receive a growth-promoting signal. 
E) It must grow extremely large.

Question 10

Which molecules and components are found within the plant cell preprophase band? (Select all correct choices)

Accepted Answer

A) cortical microtubules 
B) actin filaments 
C) myosin filaments 
D) organelles 
A) cortical microtubules 
B) actin filaments 
C) myosin filaments 
D) organelles

Question 11

Cells that have a single set of chromosomes are said to have a _______ number of chromosomes; cells that contain two full sets of 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, polyploid 
A) diploid, haploid 
B) haploid, diploid 
C) diploid, diploid 
D) haploid, haploid 
E) monoploid, polyploid

Question 12

What is the average length of interphase in mammalian cells?

Accepted Answer

A) It is exactly 10 hours in all cells. 
B) It is 12 hours long. 
C) There is not a good average since it depends on the cell type and conditions. 
D) It may last up to a day. 
E) On average, it lasts about 3 hours. 
A) It is exactly 10 hours in all cells. 
B) It is 12 hours long. 
C) There is not a good average since it depends on the cell type and conditions. 
D) It may last up to a day. 
E) On average, it lasts about 3 hours.

Question 13

Which stage of mitosis starts as sister chromatids split apart and begin to move toward opposite poles?

Accepted Answer

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

Question 14

The separation of duplicated chromosomes into two daughter nuclei is known as ________.

Accepted Answer

A) meiosis 
B) cytokinesis 
C) chromokinesis 
D) chromatosis 
E) mitosis 
A) meiosis 
B) cytokinesis 
C) chromokinesis 
D) chromatosis 
E) mitosis

Question 15

Organisms in which meiotic divisions are closely linked to gamete formation, as in the case where meiosis occurs just prior to the differentiation of the spermatozoa, exhibit ___________.

Accepted Answer

A) initial meiosis 
B) terminal meiosis 
C) zygotic meiosis 
D) sporic meiosis 
E) intermediate meiosis 
A) initial meiosis 
B) terminal meiosis 
C) zygotic meiosis 
D) sporic meiosis 
E) intermediate meiosis

Question 16

Cells that have stopped dividing and are arrested in a stage preceding replication of cytoplasmic contents and organelles are said to be in ______ 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 17

The separation of the entire cell and its cytoplasm into two daughter cells is known as _______.

Accepted Answer

A) meiosis 
B) cytokinesis 
C) chromokinesis 
D) chromatosis 
E) mitosis 
A) meiosis 
B) cytokinesis 
C) chromokinesis 
D) chromatosis 
E) mitosis

Question 18

The start of centrosome duplication begins at the ______ transition time.

Accepted Answer

A) M-G1 
B) G1-S 
C) S-G2 
D) G2-M 
E) G1-M 
A) M-G1 
B) G1-S 
C) S-G2 
D) G2-M 
E) G1-M

Question 19

What is the first step in genetic recombination?

Accepted Answer

A) lengthening of the chromosomes 
B) the introduction of single-stranded breaks in aligned DNA molecules 
C) the introduction of double-stranded breaks in aligned DNA molecules 
D) the accurate alignment of DNA molecules 
E) the exchange of pieces of DNA between homologous chromosomes 
A) lengthening of the chromosomes 
B) the introduction of single-stranded breaks in aligned DNA molecules 
C) the introduction of double-stranded breaks in aligned DNA molecules 
D) the accurate alignment of DNA molecules 
E) the exchange of pieces of DNA between homologous chromosomes

Question 20

The period in the cell cycle between the end of cell division and the beginning of DNA synthesis is called the _____ phase.

Accepted Answer

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

How does securin get its name?

At meiosis 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 ________.

The nuclear lamina is disassembled _________.

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

What activates condensin at the onset of mitosis?

Movement past the transition point near the end of G₂ that moves cells on to mitosis requires cdc2 activation by _______.

Which of the following multiprotein complexes acts primarily during interphase to ubiquitinate proteins and target them for destruction by a proteasome?

What must happen in order for a cell to move from G₀to G₁ phase?

Which molecules and components are found within the plant cell preprophase band? (Select all correct choices)

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

What is the average length of interphase in mammalian cells?

Which stage of mitosis starts as sister chromatids split apart and begin to move toward opposite poles?

The separation of duplicated chromosomes into two daughter nuclei is known as ________.

Organisms in which meiotic divisions are closely linked to gamete formation, as in the case where meiosis occurs just prior to the differentiation of the spermatozoa, exhibit ___________.

Cells that have stopped dividing and are arrested in a stage preceding replication of cytoplasmic contents and organelles are said to be in ______ state.

The separation of the entire cell and its cytoplasm into two daughter cells is known as _______.

The start of centrosome duplication begins at the ______ transition time.

What is the first step in genetic recombination?

The period in the cell cycle between the end of cell division and the beginning of DNA synthesis is called the _____ phase.

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

How does securin get its name?

At meiosis 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 ________.

The nuclear lamina is disassembled _________.

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

What activates condensin at the onset of mitosis?

Movement past the transition point near the end of G2 that moves cells on to mitosis requires cdc2 activation by _______.

Which of the following multiprotein complexes acts primarily during interphase to ubiquitinate proteins and target them for destruction by a proteasome?

What must happen in order for a cell to move from G0 to G1 phase?

Which molecules and components are found within the plant cell preprophase band? (Select all correct choices)

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

What is the average length of interphase in mammalian cells?

Which stage of mitosis starts as sister chromatids split apart and begin to move toward opposite poles?

The separation of duplicated chromosomes into two daughter nuclei is known as ________.

Organisms in which meiotic divisions are closely linked to gamete formation, as in the case where meiosis occurs just prior to the differentiation of the spermatozoa, exhibit ___________.

Cells that have stopped dividing and are arrested in a stage preceding replication of cytoplasmic contents and organelles are said to be in ______ state.

The separation of the entire cell and its cytoplasm into two daughter cells is known as _______.

The start of centrosome duplication begins at the ______ transition time.

What is the first step in genetic recombination?

The period in the cell cycle between the end of cell division and the beginning of DNA synthesis is called the _____ phase.

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

Movement past the transition point near the end of G₂ that moves cells on to mitosis requires cdc2 activation by _______.

What must happen in order for a cell to move from G₀to G₁ phase?

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