Question 1

Which of the statements about non-disjunction are true? Please select all that apply.

Accepted Answer

A)  Non-disjunction at meiosis II has a more severe impact than at meiosis I 
B)  Non-disjunction at meiosis II leads to two normal gametes and two abnormal gametes. 
C)  Non-disjunction at meiosis II leads to three abnormal gametes and one normal gamete. 
D)  Non-disjunction at meiosis I leads to four abnormal gametes. 
E)  Non-disjunction at meiosis I leads to three normal gametes and one abnormal gamete. 
A)  Non-disjunction at meiosis II has a more severe impact than at meiosis I 
B)  Non-disjunction at meiosis II leads to two normal gametes and two abnormal gametes. 
C)  Non-disjunction at meiosis II leads to three abnormal gametes and one normal gamete. 
D)  Non-disjunction at meiosis I leads to four abnormal gametes. 
E)  Non-disjunction at meiosis I leads to three normal gametes and one abnormal gamete.

Question 2

The role of checkpoints in the cell cycle is to accelerate the transitions between different phases of the cycle.

Accepted Answer

A) True 
 B)False

Question 3

Match the missing words in the following phrase. [A] separate during meiosis I and [B] separate during meiosis II. Mitosis is more similar to [C] than to [D].

Accepted Answer

The answer of Match the missing words in the following...

Question 4

Most cases of trisomy 21 in humans occur as a result of:

Accepted Answer

A)  Translocation of sections of chromosome 21 to another chromosome 
B)  Excess crossovers 
C)  Crossovers occurring at the end of the chromosome 
D)  No crossovers occurring 
A)  Translocation of sections of chromosome 21 to another chromosome 
B)  Excess crossovers 
C)  Crossovers occurring at the end of the chromosome 
D)  No crossovers occurring

Question 5

Which of the following phases are in mitosis? Please select all that apply.

Accepted Answer

A)  Metaphase 
B)  Interphase 
C)  Anaphase 
D)  Telophase 
E)  Prophase 
A)  Metaphase 
B)  Interphase 
C)  Anaphase 
D)  Telophase 
E)  Prophase

Question 6

Put the steps of meiotic recombination in the correct order
-Holliday junction resolution

Accepted Answer

A)  Step 1 
B)  Step 2 
C)  Step 3 
D)  Step 4 
A)  Step 1 
B)  Step 2 
C)  Step 3 
D)  Step 4

Question 7

Fill in the missing words in the following phrase. [A] of the DNA sequence of a gene gives rise to different alleles. A diploid organism can carry two different alleles. After DNA is [B], [C] have the same allele and [D] carry different alleles. Alleles are [E] during meiosis, giving rise to Mendelian patterns of [F] and possible differences in phenotype.

Accepted Answer

The answer of Fill in the missing words in the...

Question 8

Mitosis is more evolutionarily ancestral than meiosis.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following statements about crossovers are true? Please select all that apply.

Accepted Answer

A)  Crossover number is consistent in a given organism 
B)  Crossover location is consistent in a given organism 
C)  Successful meiosis is not dependent on crossovers 
D)  Crossover number and location is regulated 
A)  Crossover number is consistent in a given organism 
B)  Crossover location is consistent in a given organism 
C)  Successful meiosis is not dependent on crossovers 
D)  Crossover number and location is regulated

Question 10

Non-disjunction is when chromosomes fail to separate properly. What factor usually leads to non-disjunction?

Accepted Answer

A)  Failure of chromosomes to cross-over 
B)  Uncontrolled DNA replication 
C)  Apoptosis 
D)  SPO11 activity 
A)  Failure of chromosomes to cross-over 
B)  Uncontrolled DNA replication 
C)  Apoptosis 
D)  SPO11 activity

Question 11

Which of the statements about the synaptonemal complex (SC) are false? Please select all that apply.

Accepted Answer

A)  The synaptonemal complex forms between chromosomes in meiosis and mitosis 
B)  Lateral element proteins of the SC are evolutionarily conserved 
C)  The width of the SC differs between organisms 
D)  Central element proteins of the SC are evolutionarily conserved 
E)  The SC is not found in all eukaryotes 
A)  The synaptonemal complex forms between chromosomes in meiosis and mitosis 
B)  Lateral element proteins of the SC are evolutionarily conserved 
C)  The width of the SC differs between organisms 
D)  Central element proteins of the SC are evolutionarily conserved 
E)  The SC is not found in all eukaryotes

Which of the statements about non-disjunction are true? Please select all that apply.

The role of checkpoints in the cell cycle is to accelerate the transitions between different phases of the cycle.

Match the missing words in the following phrase. [A] separate during meiosis I and [B] separate during meiosis II. Mitosis is more similar to [C] than to [D].

Most cases of trisomy 21 in humans occur as a result of:

Which of the following phases are in mitosis? Please select all that apply.

Put the steps of meiotic recombination in the correct order -Holliday junction resolution

Mitosis is more evolutionarily ancestral than meiosis.

Which of the following statements about crossovers are true? Please select all that apply.

Non-disjunction is when chromosomes fail to separate properly. What factor usually leads to non-disjunction?

Which of the statements about the synaptonemal complex (SC) are false? Please select all that apply.

Darwins Finches: Evolution, Genomes, and Genes

The Central Dogma of Molecular Biology

Genome Structure, Organization, and Variation

Descent With Modification: Dna Replication and Mutation

The Inheritance of Single Gene Traits

X-Linked Genes and Sex Chromosomes

The Inheritance of Multiple Genes

The Locations of Genes on Chromosomes: Linkage and Genetic Maps

Human Genetic Mapping, Genome Wide Association Studies, and Complex Traits

Exchange and Evolution

Transcription: Reading and Expressing Genes

Translation: From Nucleic Acids to Amino Acids

Networks of Gene Regulation

Genetic Analysis of Cellular Processes

The Genetics of Populations

Metagenomes: Genome Analysis of Communities

Filters

Exam 6: The Cellular Basis for Mendelian Genetics

Which of the statements about non-disjunction are true? Please select all that apply.

The role of checkpoints in the cell cycle is to accelerate the transitions between different phases of the cycle.

Match the missing words in the following phrase. [A] separate during meiosis I and [B] separate during meiosis II. Mitosis is more similar to [C] than to [D].

Most cases of trisomy 21 in humans occur as a result of:

Which of the following phases are in mitosis? Please select all that apply.

Put the steps of meiotic recombination in the correct order -Holliday junction resolution

Mitosis is more evolutionarily ancestral than meiosis.

Which of the following statements about crossovers are true? Please select all that apply.

Non-disjunction is when chromosomes fail to separate properly. What factor usually leads to non-disjunction?

Which of the statements about the synaptonemal complex (SC) are false? Please select all that apply.

Darwins Finches: Evolution, Genomes, and Genes

The Central Dogma of Molecular Biology

Genome Structure, Organization, and Variation

Descent With Modification: Dna Replication and Mutation

The Inheritance of Single Gene Traits

X-Linked Genes and Sex Chromosomes

The Inheritance of Multiple Genes

The Locations of Genes on Chromosomes: Linkage and Genetic Maps

Human Genetic Mapping, Genome Wide Association Studies, and Complex Traits

Exchange and Evolution

Transcription: Reading and Expressing Genes

Translation: From Nucleic Acids to Amino Acids

Networks of Gene Regulation

Genetic Analysis of Cellular Processes

The Genetics of Populations

Metagenomes: Genome Analysis of Communities

Filters