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


A) chloroplast inheritance
B) mitochondrial inheritance
C) genomic imprinting
D) methylation of DNA

Correct Answer

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


A) maternal effect
B) maternal inheritance
C) epigenetic inheritance
D) imprinting

Correct Answer

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The coat color of calico cats is a result of _____.


A) maternal inheritance
B) X-inactivation
C) imprinting
D) extranuclear inheritance

Correct Answer

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In maternal effect, the _______ of the mother determines the _______ of the offspring.


A) phenotype, genotype
B) genotype, phenotype
C) rRNA, tRNA
D) imprinting, genotype

Correct Answer

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


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

Correct Answer

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A symbiotic relationship where one organism lives inside another species is called _______.


A) cytoplasmic inheritance
B) heteroplasmy
C) paternal leakage
D) endosymbiosis

Correct Answer

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Who is largely responsible for proposing the endosymbiosis theory?


A) Schimper, Wallin, Margulis
B) Lyon, Margulis, Schimper
C) Schimper, Wallin, Barr
D) Barr, Lyon, Margulis

Correct Answer

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

Correct Answer

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Monoallelic expression is associated with which of the following?


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

Correct Answer

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What gene is encoded in the Xic?


A) Xce
B) Xist
C) Tsix
D) None of these

Correct Answer

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Which inheritance pattern is common to oogenesis, spermatogenesis, and embryogenesis?


A) Maternal inheritance
B) Epigenetic inheritance
C) Maternal effect
D) Paternal inheritance

Correct Answer

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


A) Cyanobacteria for mitochondria, purple bacteria for chloroplasts
B) Purple bacteria for mitochondria, fungi for chloroplasts
C) Purple bacteria for mitochondria, cyanobacteria for chloroplasts
D) Algae for mitochondria, cyanobacteria for chloroplasts

Correct Answer

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Which of the following categories of genes is typically NOT encoded in cpDNA?


A) Genes encoding rRNA
B) Genes encoding tRNA
C) Genes for photosynthetic pathway enzymes
D) Genes encoding nuclear proteins

Correct Answer

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Expression of ______ would inhibit X-inactivation.


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

Correct Answer

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The Lyon hypothesis attempts to explain the molecular mechanism of _____.


A) X-inactivation
B) genomic imprinting
C) maternal inheritance
D) extranuclear inheritance

Correct Answer

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Both parents usually imprint the same gene.

Correct Answer

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


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

Correct Answer

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Which of the following does not inactivate an X chromosome?


A) Mammals
B) Drosophila
C) C.elegans
D) Marsupials

Correct Answer

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A modification that occurs to a nuclear gene that alters gene expression without modifying the DNA sequence is called _______ inheritance.


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

Correct Answer

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