Essential Genetics: A Genomics Perspective, Fourth Edition: Practice Quizzes

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Title Text: Essential Genetics: A Genomics Perspective, Fourth Edition, Daniel L. Hartl and Elizabeth W. Jones

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results. At the end of each exam, you have the option to e-mail your results to your instructor.

1: In polypeptide Arg-Pro-Ser, what amino acid has a free carboxyl group?
	A: Arg
	B: Ser
	C: Pro
	D: Artg and Pro
	E: None

2: A nucleotide substitution that creates a stop codon and results in premature chain termination during translation, is called a
	A: Missence
	B: Silent
	C: Nonsense
	D: Conditional
	E: Frameshift

3: The enzymatic synthesis of an RNA molecule complementary to one strand of the DNA is called
	A: Translation
	B: Transcription
	C: Splicing
	D: Conjugation
	E: Attenuation

4: RNA splicing takes place in nuclear particles, composed of protein and several specialized small RNA molecules, known as
	A: Chromosomes
	B: Nucleosomes
	C: Polysomes
	D: Ribosomes
	E: Spliceosomes

5: In prokaryotes, mRNA molecules commonly contain coding sequences for several different polypeptide chains; such a molecule is called a
	A: Polymorphic
	B: Recombinant
	C: Repetetive
	D: Polycistronic
	E: Polymeric

6: The excision of the introns and the joining of the exons constitutes
	A: RNA splicing
	B: RNA polyadenilation
	C: Exon shuffling
	D: Intron termination
	E: Transcription-translation coupling

7: The genetic code is degenerate because
	A: Frameshift mutations are tolerated
	B: Some amino acids are coded by more than one codon
	C: The code is not universal among organisms
	D: mRNA is rapidly degraded
	E: Stop codons may have corresponding tRNA molecules

8: A consensus sequence is a sequence of bases determined by
	A: Cryptic splice sites
	B: Small nuclear RNAs
	C: Majority rule
	D: Addition rule
	E: Maltiplication rule

9: Genetic evidence for a triplet code came from
	A: Three-base deletions and insertions
	B: in vitro polypeptide synthesis
	C: tRNA sequencing
	D: Wobble pairing
	E: PCR amplification

10: The model of protein evolution through the combination of different exons is called the
	A: Population genetic model
	B: Computational model
	C: Intron shuffle model
	D: Exon shuffle model

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