Question 1

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)   nuclearF) A) and C)
G) A) and B)

Question 2

What encodes the toxin paramecin in Paramecia Aurelia?

Accepted Answer

A)   MtDNA
B)   CpDNA
C)   Nuclear DNA
D)   Kappa particlesE) A) and D)
F) A) and C)

Question 3

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)   mitochondrialF) B) and C)
G) A) and B) C

Question 4

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 genotypeE) B) and C)
F) C) and D)

Question 5

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, maternalE) None of the above
F) All of the above

Question 6

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 correctF) C) and D)
G) B) and C)

Question 7

Epigenic inheritance may occur at which of the following stages?

Accepted Answer

A)   Oogenesis
B)   Spermatogenesis
C)   Embryogenesis
D)   All of the answers are correctE) None of the above
F) B) and D)

Question 8

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 correctF) B) and C)
G) None of the above

Question 9

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

Accepted Answer

A)   Sperm cells
B)   Oocytes
C)   Nurse cells
D)   PlacentaE) None of the above
F) A) and C) C

Question 10

The Lyon hypothesis attempts to explain the molecular mechanism of .

Accepted Answer

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

Question 11

What is the molecular mechanism for imprinting a gene?

Accepted Answer

A)   Acetylation
B)   Nitration
C)   Phosphorylation
D)   MethylationE) A) and B)
F) A) and D)

Question 12

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 correctF) A) and D)
G) A) and E) B

Question 13

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)   imprintingF) A) and B)
G) C) and D)

Question 14

Both parents usually imprint the same gene.

Accepted Answer

A) True 
 B)False

Question 15

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/cyanobacteriaE) A) and B)
F) None of the above

Question 16

What is a disease associated with extra nuclear inheritance?

Accepted Answer

A)   Angelman Syndrome
B)   Prader-Willi Syndrome
C)   LHON
D)   Muscular DystrophyE) B) and D)
F) B) and C)

Question 17

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 correctF) B) and C)
G) A) and B)

Question 18

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 correctF) B) and E)
G) A) and C)

Question 19

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 correctE) A) and C)
F) B) and C)

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 5: Non-Mendelian Inheritance

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

Correct AnswerverifiedShow Answer

What encodes the toxin paramecin in Paramecia Aurelia?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedC

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Epigenic inheritance may occur at which of the following stages?

Correct AnswerverifiedShow Answer

Expression of would inhibit X-inactivation.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedC

The Lyon hypothesis attempts to explain the molecular mechanism of .

Correct AnswerverifiedShow Answer

What is the molecular mechanism for imprinting a gene?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

Both parents usually imprint the same gene.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is a disease associated with extra nuclear inheritance?

Correct AnswerverifiedShow Answer

Where does erasure and imprinting occur?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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C

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C

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B

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