MMSC490 Exam 2 Questions and
Answers 100% Pass
The genomes of salamanders contain ten times more DNA than the genomes of
humans because salamanders
have more noncoding DNA than humans have.
need more DNA so they can regenerate new limbs.
have ten times more genes than humans have.
are more complex than humans. - CORRECT ANSWER:-have more noncoding
DNA than humans have.
A gene can be defined as a segment of DNA that codes for
a protein.
messenger RNA or ribosomal RNA.
a functional product.
messenger RNA. - CORRECT ANSWER:-a functional product.
Introns in mRNA-coding genes are the transcribed sequences
,that code for proteins.
that are removed by nucleases.
between protein-coding sequences.
that regulate mRNA translation. - CORRECT ANSWER:-between protein-coding
sequences.
In the nucleus, introns are removed from transcripts by
endonucleases.
exonucleases.
restriction nucleases.
splicing. - CORRECT ANSWER:-splicing
Introns can encode
microRNAs.
small nuclear RNAs.
sequences that control RNA processing. - CORRECT ANSWER:-All of the above
Histone genes have
larger exons than introns.
a single long intron.
larger introns than exons.
,no introns. - CORRECT ANSWER:-no introns.
Introns constitute about what percentage of the average human gene? -
CORRECT ANSWER:-90%
Synthesis of different proteins from the same gene is due to
exon shuffling.
intron shuffling.
exon splicing.
alternative splicing. - CORRECT ANSWER:-alternative splicing.
Simple-sequence repeats
re-associate more rapidly than non-repeated sequences.
are present in tandem arrays of thousands of copies.
sediment as unique bands in equilibrium density-gradient centrifugation. -
CORRECT ANSWER:-all of the above
A gene family is a
set of slightly different genes present as one copy each in a set of individuals.
family of individuals in which each has an identical sequence of the same gene.
family of individuals with the same gene.
, set of related but slightly different genes present in one individual. - CORRECT
ANSWER:-set of related but slightly different genes present in one individual.
Pseudogenes are
inactive genes.
genes containing variant sequences.
nonfunctional gene copies.
genes that code for an RNA but do not code for a protein. - CORRECT
ANSWER:-nonfunctional gene copies
What is the term used to describe functional protein encoding regions found
completely within an intron?
Pseudogene
Nested gene
Alternative splicing
Polymorphism - CORRECT ANSWER:-Nested gene
During the processing of miRNAs, which of the following cleaves the 5ʹ and 3ʹ
tails away from the hairpin structure in the primary miRNA transcript?
Integrase
RNAse
Drosha
Answers 100% Pass
The genomes of salamanders contain ten times more DNA than the genomes of
humans because salamanders
have more noncoding DNA than humans have.
need more DNA so they can regenerate new limbs.
have ten times more genes than humans have.
are more complex than humans. - CORRECT ANSWER:-have more noncoding
DNA than humans have.
A gene can be defined as a segment of DNA that codes for
a protein.
messenger RNA or ribosomal RNA.
a functional product.
messenger RNA. - CORRECT ANSWER:-a functional product.
Introns in mRNA-coding genes are the transcribed sequences
,that code for proteins.
that are removed by nucleases.
between protein-coding sequences.
that regulate mRNA translation. - CORRECT ANSWER:-between protein-coding
sequences.
In the nucleus, introns are removed from transcripts by
endonucleases.
exonucleases.
restriction nucleases.
splicing. - CORRECT ANSWER:-splicing
Introns can encode
microRNAs.
small nuclear RNAs.
sequences that control RNA processing. - CORRECT ANSWER:-All of the above
Histone genes have
larger exons than introns.
a single long intron.
larger introns than exons.
,no introns. - CORRECT ANSWER:-no introns.
Introns constitute about what percentage of the average human gene? -
CORRECT ANSWER:-90%
Synthesis of different proteins from the same gene is due to
exon shuffling.
intron shuffling.
exon splicing.
alternative splicing. - CORRECT ANSWER:-alternative splicing.
Simple-sequence repeats
re-associate more rapidly than non-repeated sequences.
are present in tandem arrays of thousands of copies.
sediment as unique bands in equilibrium density-gradient centrifugation. -
CORRECT ANSWER:-all of the above
A gene family is a
set of slightly different genes present as one copy each in a set of individuals.
family of individuals in which each has an identical sequence of the same gene.
family of individuals with the same gene.
, set of related but slightly different genes present in one individual. - CORRECT
ANSWER:-set of related but slightly different genes present in one individual.
Pseudogenes are
inactive genes.
genes containing variant sequences.
nonfunctional gene copies.
genes that code for an RNA but do not code for a protein. - CORRECT
ANSWER:-nonfunctional gene copies
What is the term used to describe functional protein encoding regions found
completely within an intron?
Pseudogene
Nested gene
Alternative splicing
Polymorphism - CORRECT ANSWER:-Nested gene
During the processing of miRNAs, which of the following cleaves the 5ʹ and 3ʹ
tails away from the hairpin structure in the primary miRNA transcript?
Integrase
RNAse
Drosha
