Question 1

The change of the pattern of gene expression without changing the nucleotide sequence of DNA is termed _________________.

Accepted Answer

The answer of The change of the pattern of gene...

Question 2

____________________ are mutations involving the increase of the number of repeat sequences in genes.

Accepted Answer

The answer of ____________________ are mutations involving the increase of...

Question 3

How are thymine dimers generated? What are their effects and how are they handled by the cell?

Accepted Answer

Thymine dimers are generated when two ad

Question 4

A purine or pyrimidine that differs in chemical structure from a purine or pyrimidine normally found in DNA or RNA is called a _____________.

Accepted Answer

The answer of A purine or pyrimidine that differs in...

Question 5

Explain why the phenomena of anticipation and genomic imprinting seemed at first, before they were understood, to violate basic concepts of Mendelian genetics.

Accepted Answer

The phenomena of anticipation and genomi

Question 6

Queen Victoria had an allele for alkaptonuria that originated by mutation in one of her parents.

Accepted Answer

A) True 
 B)False

Question 7

In pedigree analysis, it is easiest to identify the individual most likely to be the source of the mutation if the mutation is

Accepted Answer

A)  mitochondrial. 
B)  recessive. 
C)  autosomal dominant. 
D)  sex-linked recessive. 
E)  pseudoautosomal. 
A)  mitochondrial. 
B)  recessive. 
C)  autosomal dominant. 
D)  sex-linked recessive. 
E)  pseudoautosomal.

Question 8

Explain how a deficiency in the chromosomal contribution of one parent might be compensated for by an excess in the contribution of the other parent.

Accepted Answer

In cases where one parent has a deficien

Question 9

If a mutant allele appears in a family with no history of that disorder and is fully expressed by everyone carrying that allele, it most like is a ______________ allele.

Accepted Answer

A)  autosomal dominant 
B)  autosomal recessive 
C)  X-linked recessive 
D)  Y-linked 
E)  mitochondrial 
A)  autosomal dominant 
B)  autosomal recessive 
C)  X-linked recessive 
D)  Y-linked 
E)  mitochondrial

Question 10

Occasionally, individuals have eyes of different colors. How would you explain this mutation? Do you think it is heritable?

Accepted Answer

The condition where an individual has ey

Question 11

Genomic imprinting is a phenomenon that does not violate Mendelian principles of segregation and independent assortment.

Accepted Answer

A) True 
 B)False

Question 12

In diseases like xeroderma pigmentosum, why is it that mutations in several different genes can produce the same phenotypic effect?

Accepted Answer

In diseases like xeroderma pigmentosum (

Question 13

The differential expression of genes depending on parental origin is called ____________________.

Accepted Answer

The answer of The differential expression of genes depending on...

Question 14

Which of the following could result in the most serious type of mutation?

Accepted Answer

A)  A nucleotide substitution in an exon. 
B)  A nucleotide deletion in an exon. 
C)  A nucleotide insertion in an intron. 
D)  A nucleotide substitution in an intron. 
E)  More than one of these would be most serious. 
A)  A nucleotide substitution in an exon. 
B)  A nucleotide deletion in an exon. 
C)  A nucleotide insertion in an intron. 
D)  A nucleotide substitution in an intron. 
E)  More than one of these would be most serious.

Question 15

Fragile-X syndrome is an example of a disorder caused by trinucleotide repeats.

Accepted Answer

A) True 
 B)False

Question 16

A mutation that would change an amino acid coding codon into a termination codon is called a _____________ mutation.

Accepted Answer

The answer of A mutation that would change an amino...

Question 17

Explain why individuals with cystic fibrosis may have different levels of severity of the disease.

Accepted Answer

Individuals with cystic fibrosis may hav

The change of the pattern of gene expression without changing the nucleotide sequence of DNA is termed _________________.

____________________ are mutations involving the increase of the number of repeat sequences in genes.

How are thymine dimers generated? What are their effects and how are they handled by the cell?

A purine or pyrimidine that differs in chemical structure from a purine or pyrimidine normally found in DNA or RNA is called a _____________.

Explain why the phenomena of anticipation and genomic imprinting seemed at first, before they were understood, to violate basic concepts of Mendelian genetics.

Queen Victoria had an allele for alkaptonuria that originated by mutation in one of her parents.

In pedigree analysis, it is easiest to identify the individual most likely to be the source of the mutation if the mutation is

Explain how a deficiency in the chromosomal contribution of one parent might be compensated for by an excess in the contribution of the other parent.

If a mutant allele appears in a family with no history of that disorder and is fully expressed by everyone carrying that allele, it most like is a ______________ allele.

Occasionally, individuals have eyes of different colors. How would you explain this mutation? Do you think it is heritable?

Genomic imprinting is a phenomenon that does not violate Mendelian principles of segregation and independent assortment.

In diseases like xeroderma pigmentosum, why is it that mutations in several different genes can produce the same phenotypic effect?

The differential expression of genes depending on parental origin is called ____________________.

Which of the following could result in the most serious type of mutation?

Fragile-X syndrome is an example of a disorder caused by trinucleotide repeats.

A mutation that would change an amino acid coding codon into a termination codon is called a _____________ mutation.

Explain why individuals with cystic fibrosis may have different levels of severity of the disease.

A Perspective on Human Genetics

Cells and Cell Division

Transmission of Genes From Generation to Generation

Pedigree Analysis in Human Genetics

Complex Patterns of Inheritance

Cytogenetics: Karyotypes and Chromosome Aberrations

Development and Sex Determination

DNA Structure and Chromosomal Organization

Gene Expression: From Genes to Proteins

From Proteins to Phenotypes

Genes and Cancer

An Introduction to Genetic Technology

Biotechnology and Society

Genomes and Genomics

Reproductive Technology, Genetic Testing, and Gene Therapy

Genes and the Immune System

Genetics of Behavior

Population Genetics and Human Evolution

Filters

Exam 11: Mutation: the Source of Genetic Variation

The change of the pattern of gene expression without changing the nucleotide sequence of DNA is termed _________________.

____________________ are mutations involving the increase of the number of repeat sequences in genes.

How are thymine dimers generated? What are their effects and how are they handled by the cell?

A purine or pyrimidine that differs in chemical structure from a purine or pyrimidine normally found in DNA or RNA is called a _____________.

Explain why the phenomena of anticipation and genomic imprinting seemed at first, before they were understood, to violate basic concepts of Mendelian genetics.

Queen Victoria had an allele for alkaptonuria that originated by mutation in one of her parents.

In pedigree analysis, it is easiest to identify the individual most likely to be the source of the mutation if the mutation is

Explain how a deficiency in the chromosomal contribution of one parent might be compensated for by an excess in the contribution of the other parent.

If a mutant allele appears in a family with no history of that disorder and is fully expressed by everyone carrying that allele, it most like is a ______________ allele.

Occasionally, individuals have eyes of different colors. How would you explain this mutation? Do you think it is heritable?

Genomic imprinting is a phenomenon that does not violate Mendelian principles of segregation and independent assortment.

In diseases like xeroderma pigmentosum, why is it that mutations in several different genes can produce the same phenotypic effect?

The differential expression of genes depending on parental origin is called ____________________.

Which of the following could result in the most serious type of mutation?

Fragile-X syndrome is an example of a disorder caused by trinucleotide repeats.

A mutation that would change an amino acid coding codon into a termination codon is called a _____________ mutation.

Explain why individuals with cystic fibrosis may have different levels of severity of the disease.

A Perspective on Human Genetics

Cells and Cell Division

Transmission of Genes From Generation to Generation

Pedigree Analysis in Human Genetics

Complex Patterns of Inheritance

Cytogenetics: Karyotypes and Chromosome Aberrations

Development and Sex Determination

DNA Structure and Chromosomal Organization

Gene Expression: From Genes to Proteins

From Proteins to Phenotypes

Genes and Cancer

An Introduction to Genetic Technology

Biotechnology and Society

Genomes and Genomics

Reproductive Technology, Genetic Testing, and Gene Therapy

Genes and the Immune System

Genetics of Behavior

Population Genetics and Human Evolution

Filters