Question 1

Meiosis involves

Accepted Answer

A) one round of chromosomal replication and one nuclear division. 
B) one round of chromosomal replication and two nuclear divisions. 
C) two rounds of chromosomal replication and one nuclear division. 
D) two rounds of chromosomal replication and two nuclear divisions. 
E) the number of rounds of chromosomal replication and nuclear divisions depends on whether the cell is haploid or diploid. 
A) one round of chromosomal replication and one nuclear division. 
B) one round of chromosomal replication and two nuclear divisions. 
C) two rounds of chromosomal replication and one nuclear division. 
D) two rounds of chromosomal replication and two nuclear divisions. 
E) the number of rounds of chromosomal replication and nuclear divisions depends on whether the cell is haploid or diploid.

Question 2

The benefit of sexual reproduction is the production of genetic ________ in offspring.

Accepted Answer

variety or

Question 3

Reproduction of Komodo dragons by parthenogenesis involves

Accepted Answer

A) conjugation. 
B) transformation. 
C) self-fertilization. 
D) homologous recombination. 
E) spore formation. 
A) conjugation. 
B) transformation. 
C) self-fertilization. 
D) homologous recombination. 
E) spore formation.

Question 4

Which of the following is true about mitosis or meiosis?

Accepted Answer

A) Homologues are separated in prophase I of meiosis. 
B) Homologues are separated in prophase II of meiosis. 
C) Homologues are separated in prophase of mitosis. 
D) Sister chromatids are separated in prophase I of meiosis. 
E) Sister chromatids are separated in anaphase II of meiosis. 
A) Homologues are separated in prophase I of meiosis. 
B) Homologues are separated in prophase II of meiosis. 
C) Homologues are separated in prophase of mitosis. 
D) Sister chromatids are separated in prophase I of meiosis. 
E) Sister chromatids are separated in anaphase II of meiosis.

Question 5

Metaphase II arrest is mediated by ________,a biochemical activity present in mature eggs.

Accepted Answer

The answer of Metaphase II arrest is mediated by ________,a...

Question 6

Fungi produce spores by which of the following processes?

Accepted Answer

A) binary fission 
B) mitosis 
C) meiosis 
D) gene conversion 
E) cloning 
A) binary fission 
B) mitosis 
C) meiosis 
D) gene conversion 
E) cloning

Question 7

A mishap in chromosomal partitioning during meiosis is referred to as ________.

Accepted Answer

The answer of A mishap in chromosomal partitioning during meiosis...

Question 8

When studying Drosophila genetics,Morgan found that the haploid chromosome number equals the number of

Accepted Answer

A) bouquets. 
B) linkage groups. 
C) centromeres. 
D) haploid gametes. 
E) cohesins. 
A) bouquets. 
B) linkage groups. 
C) centromeres. 
D) haploid gametes. 
E) cohesins.

Question 9

The genes along a particular linear chromosome are illustrated in the figure above.The frequency of crossover events between these loci will be least frequent for genes

Accepted Answer

A) a and b. 
B) b and c. 
C) c and d. 
D) d and e. 
E) a and e. 
A) a and b. 
B) b and c. 
C) c and d. 
D) d and e. 
E) a and e.

Question 10

A genetic cross was performed with two pea plants both with green,wrinkled seeds.Of the resulting offspring,75% had green,wrinkled seeds and 25% had green,smooth seeds (W = wrinkled; w = smooth).With regard to wrinkled versus smooth seeds,the parental plants must have been ________.

Accepted Answer

The answer of A genetic cross was performed with two...

Question 11

Meiosis I results in the formation of

Accepted Answer

A) two diploid cells. 
B) four diploid cells. 
C) two haploid cells. 
D) four haploid cells. 
E) one quadraploid cell. 
A) two diploid cells. 
B) four diploid cells. 
C) two haploid cells. 
D) four haploid cells. 
E) one quadraploid cell.

Question 12

You wish to confirm that gene X is associated with the F plasmid of your bacterial strain.To accomplish this using bacterial conjugation,you should conjugate your strain with a compatible bacterial strain that is

Accepted Answer

A) an Hfr strain. 
B) another F+ strain. 
C) an F' strain. 
D) an F− strain. 
E) the same F+ strain. 
A) an Hfr strain. 
B) another F+ strain. 
C) an F' strain. 
D) an F− strain. 
E) the same F+ strain.

Question 13

In analyzing data for crosses involving two genes,Mendel discovered not only that these alleles separate from each other when examining one trait but also that the alleles of a second trait will separate from each other without regard to those of the first trait.This observation was the basis of Mendel's law of ________.

Accepted Answer

independen

Question 14

The observation by Masui that cytoplasm from a mature egg injected into an immature oocyte stimulated meiosis led to the identification of ________.

Accepted Answer

MPF (matur

Question 15

Each of the following sentences is true regarding homologous recombination except

Accepted Answer

A) The frequency of recombination is uniform across the genome. 
B) Homologous recombination involves RecA in prokaryotes and RAD51 in eukaryotes. 
C) Homologous recombination resolves the repaired strands using a Holliday junction. 
D) Homologous recombination involves a process known as homology searching. 
E) Homologous recombination involves the formation of a synaptonemal complex. 
A) The frequency of recombination is uniform across the genome. 
B) Homologous recombination involves RecA in prokaryotes and RAD51 in eukaryotes. 
C) Homologous recombination resolves the repaired strands using a Holliday junction. 
D) Homologous recombination involves a process known as homology searching. 
E) Homologous recombination involves the formation of a synaptonemal complex.

Question 16

What is the distribution of parental chromosomes in each of the four haploid cells produced by meiosis II?

Accepted Answer

A) 100% maternal or paternal chromosomes 
B) a 75%:25% mix of maternal and paternal chromosomes 
C) a 50%:50% mix of maternal and paternal chromosomes 
D) a random mix of maternal and paternal chromosomes 
E) The distribution depends on whether the organism is haploid or diploid. 
A) 100% maternal or paternal chromosomes 
B) a 75%:25% mix of maternal and paternal chromosomes 
C) a 50%:50% mix of maternal and paternal chromosomes 
D) a random mix of maternal and paternal chromosomes 
E) The distribution depends on whether the organism is haploid or diploid.

Question 17

The genotype of a tall,yellow pea plant is TtYy.How many different types of gametes can this individual produce if the tall and yellow genes are on different chromosomes?

Accepted Answer

A) 1 
B) 2 
C) 4 
D) 5 
E) 8 
A) 1 
B) 2 
C) 4 
D) 5 
E) 8

Question 18

Meiosis most resembles mitosis in

Accepted Answer

A) the phases of meiosis I. 
B) the phases of meiosis II. 
C) meiosis I,except for the pairing of homologues. 
D) meiosis II,except for the pairing of homologues. 
E) all phases of meiosis I and meiosis II. 
A) the phases of meiosis I. 
B) the phases of meiosis II. 
C) meiosis I,except for the pairing of homologues. 
D) meiosis II,except for the pairing of homologues. 
E) all phases of meiosis I and meiosis II.

Question 19

Meiosis I is known as a ________ division because of what happens to the chromosome number.

Accepted Answer

The answer of Meiosis I is known as a ________...

Question 20

Which of the following types of organisms is always haploid?

Accepted Answer

A) bacteria 
B) fungus 
C) Drosophila 
D) ferns 
E) humans 
A) bacteria 
B) fungus 
C) Drosophila 
D) ferns 
E) humans

Exam 25: Sexual Reproduction,meiosis,and Genetic Recombination

Meiosis involves

The benefit of sexual reproduction is the production of genetic ________ in offspring.

Reproduction of Komodo dragons by parthenogenesis involves

Which of the following is true about mitosis or meiosis?

Metaphase II arrest is mediated by ________,a biochemical activity present in mature eggs.

Fungi produce spores by which of the following processes?

A mishap in chromosomal partitioning during meiosis is referred to as ________.

When studying Drosophila genetics,Morgan found that the haploid chromosome number equals the number of

The genes along a particular linear chromosome are illustrated in the figure above.The frequency of crossover events between these loci will be least frequent for genes

A genetic cross was performed with two pea plants both with green,wrinkled seeds.Of the resulting offspring,75% had green,wrinkled seeds and 25% had green,smooth seeds (W = wrinkled; w = smooth).With regard to wrinkled versus smooth seeds,the parental plants must have been ________.

Meiosis I results in the formation of

You wish to confirm that gene X is associated with the F plasmid of your bacterial strain.To accomplish this using bacterial conjugation,you should conjugate your strain with a compatible bacterial strain that is

The observation by Masui that cytoplasm from a mature egg injected into an immature oocyte stimulated meiosis led to the identification of ________.

Each of the following sentences is true regarding homologous recombination except

What is the distribution of parental chromosomes in each of the four haploid cells produced by meiosis II?

The genotype of a tall,yellow pea plant is TtYy.How many different types of gametes can this individual produce if the tall and yellow genes are on different chromosomes?

Meiosis most resembles mitosis in

Meiosis I is known as a ________ division because of what happens to the chromosome number.

Which of the following types of organisms is always haploid?

A Preview of Cell Biology

The Chemistry of the Cell

The Macromolecules of the Cell

Cells and Organelles

Bioenergetics: the Flow of Energy in the Cell

Enzymes: the Catalysts of Life

Membranes: Their Structure,function,and Chemistry

Transport Across Membranes: Overcoming the Permeability Barrier

Chemotrophic Energy Metabolism: Glycolysis and Fermentation

Chemotrophic Energy Metabolism: Aerobic Respiration

Phototrophic Energy Metabolism: Photosynthesis

The Endomembrane System

Cytoskeletal Systems

Cellular Movement: Motility and Contractility

Beyond the Cell: Cell Adhesions, cell Junctions, and Extracellular Structures

The Structural Basis of Cellular Information: Dna, chromosomes, and the Nucleus

DNA Replication, repair, and Recombination

Gene Expression: Ithe Genetic Code and Transcription

Gene Expression: Iiprotein Synthesis and Sorting

The Regulation of Gene Expression

Molecular Biology Techniques for Cell Biology

Signal Transduction Mechanisms: Ielectrical and Synaptic Signaling in Neurons

Signal Transduction Mechanisms: Iimessengers and Receptors

The Cell Cycle and Mitosis

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