Question 1

What stage of prophase I of meiosis begins when synapsis ends?

Accepted Answer

A) pachytene 
B) leptotene 
C) diakinesis 
D) zygotene 
E) diplotene 
A) pachytene 
B) leptotene 
C) diakinesis 
D) zygotene 
E) diplotene

Question 2

Even before cytokinesis has been completed,the two centrioles of a daughter cell disengage,an event that is triggered by the enzyme _________,which becomes activated late in mitosis.

Accepted Answer

A) invertase 
B) centriolase 
C) separase 
D) disengagase 
E) activase 
A) invertase 
B) centriolase 
C) separase 
D) disengagase 
E) activase

Question 3

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 4

Once a fission yeast cell passes START,the cell is committed to replication.What is responsible for activating cdc2 at this time?

Accepted Answer

A) one or more G1 cyclins 
B) one or more G2 cyclins 
C) one or more S cyclins 
D) one or more M cyclins 
E) one or more G0 cyclins 
A) one or more G1 cyclins 
B) one or more G2 cyclins 
C) one or more S cyclins 
D) one or more M cyclins 
E) one or more G0 cyclins

Question 5

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 6

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 7

During which stage of meiosis is cohesion between chromosome arms lost? The homologous chromosomes of each bivalent separate during this stage as well,but the cohesion between the sister chromatids and their centromeres remains strong.

Accepted Answer

A) anaphase II of meiosis 
B) anaphase I of meiosis 
C) telophase I of meiosis 
D) metaphase I of meiosis 
E) telophase II of meiosis 
A) anaphase II of meiosis 
B) anaphase I of meiosis 
C) telophase I of meiosis 
D) metaphase I of meiosis 
E) telophase II of meiosis

Question 8

The random assortment of chromosomes at anaphase I accounts for a large amount of the _________ within a species.

Accepted Answer

A) stability 
B) genetic variability 
C) biochemical inhibition 
D) genetic uniformity 
E) genetic forbearance 
A) stability 
B) genetic variability 
C) biochemical inhibition 
D) genetic uniformity 
E) genetic forbearance

Question 9

What multiprotein complex has recently been shown to play a significant role in chromosome compaction?

Accepted Answer

A) compressin 
B) condensin 
C) elastin 
D) loopin 
E) mitosin 
A) compressin 
B) condensin 
C) elastin 
D) loopin 
E) mitosin

Question 10

What controls the progression of a cell from G2 to M?

Accepted Answer

A) mitotic Cdk 
B) synthetic Cdk 
C) the spindle 
D) chromosome compaction 
E) mitotic Cpk 
A) mitotic Cdk 
B) synthetic Cdk 
C) the spindle 
D) chromosome compaction 
E) mitotic Cpk

Question 11

The generally short-lived stage between the two meiotic divisions is called ________.

Accepted Answer

A) interphase 
B) intermediacy 
C) interkinesis 
D) middlephase 
E) zwitterphase 
A) interphase 
B) intermediacy 
C) interkinesis 
D) middlephase 
E) zwitterphase

Question 12

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 13

At what stage of meiosis are vertebrate eggs usually fertilized?

Accepted Answer

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

Question 14

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 15

What allows the interaction between the mitotic spindle and the chromosomes to occur?

Accepted Answer

A) nuclear envelope breakdown 
B) nucleosome breakdown 
C) nucleolus breakdown 
D) chromatin dissolution 
E) chromosome condensation 
A) nuclear envelope breakdown 
B) nucleosome breakdown 
C) nucleolus breakdown 
D) chromatin dissolution 
E) chromosome condensation

Question 16

How would you describe the orientation of the two centrioles of the centrosome relative to each other?

Accepted Answer

A) oriented at right angles 
B) oriented in the same direction 
C) obverse 
D) reversed 
E) converse 
A) oriented at right angles 
B) oriented in the same direction 
C) obverse 
D) reversed 
E) converse

Question 17

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 18

By what process are gametes produced from a gametophyte?

Accepted Answer

A) meiosis 
B) cytokinesis 
C) mitosis 
D) fission 
E) replication 
A) meiosis 
B) cytokinesis 
C) mitosis 
D) fission 
E) replication

Question 19

When is a kinetochore assembled on the centromere?

Accepted Answer

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

Question 20

The integrity of the nuclear envelope is disrupted _________.

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 into it by cytoplasmic dyneins associated with the outer nuclear membrane 
D) by cytoplasmic kinesins 
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 into it by cytoplasmic dyneins associated with the outer nuclear membrane 
D) by cytoplasmic kinesins 
E) by cytoplasmic microtubules and microfilaments

What stage of prophase I of meiosis begins when synapsis ends?

Even before cytokinesis has been completed,the two centrioles of a daughter cell disengage,an event that is triggered by the enzyme _________,which becomes activated late in mitosis.

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

Once a fission yeast cell passes START,the cell is committed to replication.What is responsible for activating cdc2 at this time?

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 the average length of M phase?

During which stage of meiosis is cohesion between chromosome arms lost? The homologous chromosomes of each bivalent separate during this stage as well,but the cohesion between the sister chromatids and their centromeres remains strong.

The random assortment of chromosomes at anaphase I accounts for a large amount of the _________ within a species.

What multiprotein complex has recently been shown to play a significant role in chromosome compaction?

What controls the progression of a cell from G₂ to M?

The generally short-lived stage between the two meiotic divisions is called ________.

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

At what stage of meiosis are vertebrate eggs usually fertilized?

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

What allows the interaction between the mitotic spindle and the chromosomes to occur?

How would you describe the orientation of the two centrioles of the centrosome relative to each other?

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

By what process are gametes produced from a gametophyte?

When is a kinetochore assembled on the centromere?

The integrity of the nuclear envelope is disrupted _________.

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 stage of prophase I of meiosis begins when synapsis ends?

Even before cytokinesis has been completed,the two centrioles of a daughter cell disengage,an event that is triggered by the enzyme _________,which becomes activated late in mitosis.

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

Once a fission yeast cell passes START,the cell is committed to replication.What is responsible for activating cdc2 at this time?

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 the average length of M phase?

During which stage of meiosis is cohesion between chromosome arms lost? The homologous chromosomes of each bivalent separate during this stage as well,but the cohesion between the sister chromatids and their centromeres remains strong.

The random assortment of chromosomes at anaphase I accounts for a large amount of the _________ within a species.

What multiprotein complex has recently been shown to play a significant role in chromosome compaction?

What controls the progression of a cell from G2 to M?

The generally short-lived stage between the two meiotic divisions is called ________.

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

At what stage of meiosis are vertebrate eggs usually fertilized?

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

What allows the interaction between the mitotic spindle and the chromosomes to occur?

How would you describe the orientation of the two centrioles of the centrosome relative to each other?

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

By what process are gametes produced from a gametophyte?

When is a kinetochore assembled on the centromere?

The integrity of the nuclear envelope is disrupted _________.

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 controls the progression of a cell from G₂ to M?