Question 1

What encodes the toxin paramecin in Paramecia Aurelia?

Accepted Answer

A)   MtDNA
B)   CpDNA
C)   Nuclear DNA
D)   Kappa particles

Question 2

Where does erasure and imprinting occur?

Accepted Answer

A)   Nurse cells
B)   Sperm cells
C)   Oocytes
D)   Somatic cells
E)   More than one of the answers are correct

Question 3

A modification that occurs to a nuclear gene that alters gene expression, but not permanently, is called inheritance.

Accepted Answer

A)   extranuclear
B)   cytoplasmic
C)   maternal effect
D)   epigenetic
E)   nuclear

Question 4

Expression of would inhibit X-inactivation.

Accepted Answer

A)   Xic
B)   Xist
C)   TsiX
D)   All of the answers are correct
E)   None of the answers are correct

Question 5

The Lyon hypothesis attempts to explain the molecular mechanism of .

Accepted Answer

A)   X-inactivation
B)   Genomic imprinting
C)   Maternal inheritance
D)   Extra nuclear inheritance

Question 6

What is thought to be the origin of mitochondria? Of chloroplasts?

Accepted Answer

A)   Cyan bacteria/purple bacteria
B)   Purple bacteria/fungus
C)   Purple bacteria/cyanobacteria
D)   Algae/cyanobacteria

Question 7

Both parents usually imprint the same gene.

Accepted Answer

A) True 
 B)False

Question 8

Dosage compensation offsets the problems associated with differences in the number of chromosomes in many species.

Accepted Answer

A)   cytoplasmic
B)   autosome
C)   sex
D)   extranuclear
E)   mitochondrial C

Question 9

The inheritance of leaf pigmentation in the four-o'clock plant Mirabilis jalapa is an example of .

Accepted Answer

A)   Maternal effect
B)   Maternal inheritance
C)   Epigenic inheritance
D)   Imprinting
E)   None of the answers are correct B

Question 10

Epigenic inheritance may occur at which of the following stages?

Accepted Answer

A)   Oogenesis
B)   Spermatogenesis
C)   Embryogenesis
D)   All of the answers are correct

Question 11

Differentially methylated domains (DMDs)  are associated with which of the following?

Accepted Answer

A)   X-inactivation
B)   Genomic imprinting
C)   Maternal inheritance
D)   Extra nuclear inheritance
E)   All of the answers are correct

Question 12

Which of the following is primarily responsible for the maternal effect?

Accepted Answer

A)   Sperm cells
B)   Oocytes
C)   Nurse cells
D)   Placenta C

Question 13

mtDNA contains all of the genes necessary for the complete function of mitochondrial
metabolism.

Accepted Answer

A) True 
 B)False

Question 14

In the Igf-2 allele, which chromosome is imprinted? Which is expressed?

Accepted Answer

A)   Paternal, paternal
B)   Paternal, maternal
C)   Maternal, paternal
D)   Maternal, maternal

Question 15

In the gene that affects snail coiling, the is responsible for the phenotype of the offspring.

Accepted Answer

A)   Mother's phenotype
B)   Father's phenotype
C)   Mother's genotype
D)   Father's genotype

Question 16

What is a disease associated with extra nuclear inheritance?

Accepted Answer

A)   Angelman Syndrome
B)   Prader-Willi Syndrome
C)   LHON
D)   Muscular Dystrophy

Question 17

Who originally identified a highly condensed structure in the interphase of nuclei?

Accepted Answer

A)   Lyon
B)   Barr
C)   Ohno
D)   None of the answers are correct

Question 18

What is the molecular mechanism for imprinting a gene?

Accepted Answer

A)   Acetylation
B)   Nitration
C)   Phosphorylation
D)   Methylation

Question 19

Chlamydomonas was the used as the model organism for the study of .

Accepted Answer

A)   Chloroplast inheritance
B)   Mitochondrial inheritance
C)   Genomic imprinting
D)   Methylation of DNA
E)   None of the answers are correct

Question 20

If the sperm cell contributes mitochondria to the oocyte, it is called .

Accepted Answer

A)   paternal leakage
B)   maternal leakage
C)   paternal inheritance
D)   mitochondria
E)   imprinting

Exam 5: Non-Mendelian Inheritance

What encodes the toxin paramecin in Paramecia Aurelia?

Correct AnswerverifiedShow Answer

Where does erasure and imprinting occur?

Correct AnswerverifiedShow Answer

A modification that occurs to a nuclear gene that alters gene expression, but not permanently, is called inheritance.

Correct AnswerverifiedShow Answer

Expression of would inhibit X-inactivation.

Correct AnswerverifiedShow Answer

The Lyon hypothesis attempts to explain the molecular mechanism of .

Correct AnswerverifiedShow Answer

What is thought to be the origin of mitochondria? Of chloroplasts?

Correct AnswerverifiedShow Answer

Both parents usually imprint the same gene.

Correct AnswerverifiedShow Answer

Dosage compensation offsets the problems associated with differences in the number of chromosomes in many species.

Correct AnswerverifiedC

The inheritance of leaf pigmentation in the four-o'clock plant Mirabilis jalapa is an example of .

Correct AnswerverifiedB

Epigenic inheritance may occur at which of the following stages?

Correct AnswerverifiedShow Answer

Differentially methylated domains (DMDs) are associated with which of the following?

Correct AnswerverifiedShow Answer

Which of the following is primarily responsible for the maternal effect?

Correct AnswerverifiedC

mtDNA contains all of the genes necessary for the complete function of mitochondrial metabolism.

Correct AnswerverifiedShow Answer

In the Igf-2 allele, which chromosome is imprinted? Which is expressed?

Correct AnswerverifiedShow Answer

In the gene that affects snail coiling, the is responsible for the phenotype of the offspring.

Correct AnswerverifiedShow Answer

What is a disease associated with extra nuclear inheritance?

Correct AnswerverifiedShow Answer

Who originally identified a highly condensed structure in the interphase of nuclei?

Correct AnswerverifiedShow Answer

What is the molecular mechanism for imprinting a gene?

Correct AnswerverifiedShow Answer

Chlamydomonas was the used as the model organism for the study of .

Correct AnswerverifiedShow Answer

If the sperm cell contributes mitochondria to the oocyte, it is called .

Correct AnswerverifiedShow Answer

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