Question 1

What is meant by the term heterogeneous nuclear RNA (hnRNA)?

Accepted Answer

pre-mRNA,primary tra

Question 2

Which of the following two terms relate most closely to split genes?

Accepted Answer

A)  5′-cap, 3′-poly-A tail 
B)  introns, exons 
C)  elongation, termination 
D)  transcription, translation 
E)  heteroduplex, homoduplex 
A)  5′-cap, 3′-poly-A tail 
B)  introns, exons 
C)  elongation, termination 
D)  transcription, translation 
E)  heteroduplex, homoduplex

Question 3

The code is nonoverlapping,meaning that,assuming "standard translation," a given base participates in the specification of one and only one amino acid.

Accepted Answer

A) True 
 B)False

Question 4

Messenger RNA is usually polycistronic in eukaryotes.

Accepted Answer

A) True 
 B)False

Question 5

In the context of molecular genetics,how does one reconcile the terms overlapping genes and nonoverlapping code?

Accepted Answer

The genetic code contains codons that ar

Question 6

A class of mutations that results in multiple contiguous (side-by-side)amino acid changes in proteins is probably caused by which of the following type of mutation?

Accepted Answer

A)  frameshift 
B)  transversion 
C)  transition 
D)  base analog 
E)  recombinant 
A)  frameshift 
B)  transversion 
C)  transition 
D)  base analog 
E)  recombinant

Question 7

Of the following three types of nucleic acids-DNA,mRNA,tRNA-which is most likely to contain modified bases?

Accepted Answer

The answer of Of the following three types of nucleic...

Question 8

It has been recently determined that the gene for Duchenne muscular dystrophy (DMD)is more than 2000 kb (kilobases)in length; however,the mRNA produced by this gene is only about 14 kb long.What is a likely cause of this discrepancy?

Accepted Answer

A)  The exons have been spliced out during mRNA processing. 
B)  The DNA represents a double-stranded structure, whereas the RNA is single-stranded. 
C)  There are more amino acids coded for by the DNA than by the mRNA. 
D)  The introns have been spliced out during mRNA processing. 
E)  When the mRNA is produced, it is highly folded and therefore less long. 
A)  The exons have been spliced out during mRNA processing. 
B)  The DNA represents a double-stranded structure, whereas the RNA is single-stranded. 
C)  There are more amino acids coded for by the DNA than by the mRNA. 
D)  The introns have been spliced out during mRNA processing. 
E)  When the mRNA is produced, it is highly folded and therefore less long.

Question 9

An intron is a section of ________.

Accepted Answer

A)  protein that is clipped out posttranslationally 
B)  RNA that is removed during RNA processing 
C)  DNA that is removed during DNA processing 
D)  transfer RNA that binds to the anticodon 
E)  carbohydrate that serves as a signal for RNA transport 
A)  protein that is clipped out posttranslationally 
B)  RNA that is removed during RNA processing 
C)  DNA that is removed during DNA processing 
D)  transfer RNA that binds to the anticodon 
E)  carbohydrate that serves as a signal for RNA transport

Question 10

Describe the function of N-formylmethionine in prokaryotes.

Accepted Answer

N-formylmethionine is a modifi

Question 11

"Breaking the genetic code" has been referred to as one of the most significant scientific achievements in modern times.Describe (in outline or brief statement form)the procedures used to break the code.

Accepted Answer

(a) use of polynucleotide phosphorylase

What is meant by the term heterogeneous nuclear RNA (hnRNA)?

Which of the following two terms relate most closely to split genes?

The code is nonoverlapping,meaning that,assuming "standard translation," a given base participates in the specification of one and only one amino acid.

Messenger RNA is usually polycistronic in eukaryotes.

In the context of molecular genetics,how does one reconcile the terms overlapping genes and nonoverlapping code?

A class of mutations that results in multiple contiguous (side-by-side)amino acid changes in proteins is probably caused by which of the following type of mutation?

Of the following three types of nucleic acids-DNA,mRNA,tRNA-which is most likely to contain modified bases?

It has been recently determined that the gene for Duchenne muscular dystrophy (DMD)is more than 2000 kb (kilobases)in length; however,the mRNA produced by this gene is only about 14 kb long.What is a likely cause of this discrepancy?

An intron is a section of ________.

Describe the function of N-formylmethionine in prokaryotes.

"Breaking the genetic code" has been referred to as one of the most significant scientific achievements in modern times.Describe (in outline or brief statement form)the procedures used to break the code.

Introduction to Genetics

Mitosis and Meiosis

Mendelian Genetics

Extensions of Mendelian Genetics

Chromosome Mapping in Eukaryotes

Genetic Analysis and Mapping in Bacteria and Bacteriophages

Sex Determination and Sex Chromosomes

Chromosome Mutations: Variation in Number and Arrangement

Extranuclear Inheritance

DNA Structure and Analysis

DNA Replication and Recombination

DNA Organization in Chromosomes

Translation and Proteins

Gene Mutation,dna Repair,and Transposition

Regulation of Gene Expression in Prokaryotes

Regulation of Gene Expression in Eukaryotes

Developmental Genetics

Cancer and Regulation of the Cell Cycle

Recombinant DNA Technology

Genomics, bioinformatics, and Proteomics

Applications and Ethics of Genetic Engineering and Biotechnology

Quantitative Genetics and Multifactorial Traits

Neurogenetics

Population and Evolutionary Genetics

Filters

Exam 13: The Genetic Code and Transcription

What is meant by the term heterogeneous nuclear RNA (hnRNA)?

Which of the following two terms relate most closely to split genes?

The code is nonoverlapping,meaning that,assuming "standard translation," a given base participates in the specification of one and only one amino acid.

Messenger RNA is usually polycistronic in eukaryotes.

In the context of molecular genetics,how does one reconcile the terms overlapping genes and nonoverlapping code?

A class of mutations that results in multiple contiguous (side-by-side)amino acid changes in proteins is probably caused by which of the following type of mutation?

Of the following three types of nucleic acids-DNA,mRNA,tRNA-which is most likely to contain modified bases?

It has been recently determined that the gene for Duchenne muscular dystrophy (DMD)is more than 2000 kb (kilobases)in length; however,the mRNA produced by this gene is only about 14 kb long.What is a likely cause of this discrepancy?

An intron is a section of ________.

Describe the function of N-formylmethionine in prokaryotes.

"Breaking the genetic code" has been referred to as one of the most significant scientific achievements in modern times.Describe (in outline or brief statement form)the procedures used to break the code.

Introduction to Genetics

Mitosis and Meiosis

Mendelian Genetics

Extensions of Mendelian Genetics

Chromosome Mapping in Eukaryotes

Genetic Analysis and Mapping in Bacteria and Bacteriophages

Sex Determination and Sex Chromosomes

Chromosome Mutations: Variation in Number and Arrangement

Extranuclear Inheritance

DNA Structure and Analysis

DNA Replication and Recombination

DNA Organization in Chromosomes

Translation and Proteins

Gene Mutation,dna Repair,and Transposition

Regulation of Gene Expression in Prokaryotes

Regulation of Gene Expression in Eukaryotes

Developmental Genetics

Cancer and Regulation of the Cell Cycle

Recombinant DNA Technology

Genomics, bioinformatics, and Proteomics

Applications and Ethics of Genetic Engineering and Biotechnology

Quantitative Genetics and Multifactorial Traits

Neurogenetics

Population and Evolutionary Genetics

Filters