Question 1

Match the following descriptions with the appropriate letter.
  
-site of protein synthesis

Accepted Answer

A

Question 2

MATCHING
Match the term to the description.
-tRNA

Accepted Answer

A) Binds to an amino acid 
B) Consists of two subunits 
C) Carries codons 
D) Ends translation 
E) Translation begins here
F)Forms between two amino acids 
A) Binds to an amino acid 
B) Consists of two subunits 
C) Carries codons 
D) Ends translation 
E) Translation begins here
F)Forms between two amino acids A

Question 3

The most common mutation responsible for cystic fibrosis

Accepted Answer

A)  introduces an early stop codon producing a shortened protein. 
B)  is deletion of one amino acid from the normal protein. 
C)  is the change of a single amino acid from the normal protein. 
D)  is due to the loss of both copies of the gene for chloride ion transport. 
E)  is due to an extra copy of the chromosome containing the chloride ion transport gene. 
A)  introduces an early stop codon producing a shortened protein. 
B)  is deletion of one amino acid from the normal protein. 
C)  is the change of a single amino acid from the normal protein. 
D)  is due to the loss of both copies of the gene for chloride ion transport. 
E)  is due to an extra copy of the chromosome containing the chloride ion transport gene. B

Question 4

MATCHING
Match the term to the description.
-Stop codon

Accepted Answer

A) Binds to an amino acid 
B) Consists of two subunits 
C) Carries codons 
D) Ends translation 
E) Translation begins here
F)Forms between two amino acids 
A) Binds to an amino acid 
B) Consists of two subunits 
C) Carries codons 
D) Ends translation 
E) Translation begins here
F)Forms between two amino acids

Question 5

Gene regulation is important because

Accepted Answer

A)  all genes have to be expressed in all cells. 
B)  all the cells in the body have to express the same genes at the same time. 
C)  genes are constantly changing due to mutation. 
D)  different genes need to be expressed in different cells. 
E)  no two cells in the body will express the same genes. 
A)  all genes have to be expressed in all cells. 
B)  all the cells in the body have to express the same genes at the same time. 
C)  genes are constantly changing due to mutation. 
D)  different genes need to be expressed in different cells. 
E)  no two cells in the body will express the same genes.

Question 6

A gene mutation can cause one amino acid of a protein to be substituted for another amino acid.

Accepted Answer

A) True 
 B)False

Question 7

Consider a stretch of 18 nucleotides on an mRNA molecule.If all 18 of these nucleotides are translated,how many amino acids will this account for?

Accepted Answer

A)  3 
B)  4 
C)  6 
D)  9 
E)  18 
A)  3 
B)  4 
C)  6 
D)  9 
E)  18

Question 8

Which of the following statements is true about RNA polymerase?

Accepted Answer

A)  RNA polymerase binds to promoter sequences in DNA to begin transcription. 
B)  RNA polymerase produces strands containing T bases. 
C)  RNA polymerase uses a RNA template to make DNA. 
D)  RNA polymerase stops making new DNA sequences when it encounters a termination sequence. 
E)  RNA polymerase uses the DNA template to make more DNA. 
A)  RNA polymerase binds to promoter sequences in DNA to begin transcription. 
B)  RNA polymerase produces strands containing T bases. 
C)  RNA polymerase uses a RNA template to make DNA. 
D)  RNA polymerase stops making new DNA sequences when it encounters a termination sequence. 
E)  RNA polymerase uses the DNA template to make more DNA.

Question 9

Which of the following statements is true about sickle cell anemia?

Accepted Answer

A)  Affected individuals have a wide range of symptoms. 
B)  It is inherited as an autosomal recessive trait. 
C)  It can lead to early death if left untreated. 
D)  It results from a mutation in the gene that encodes beta globin. 
E)  All of these are correct. 
A)  Affected individuals have a wide range of symptoms. 
B)  It is inherited as an autosomal recessive trait. 
C)  It can lead to early death if left untreated. 
D)  It results from a mutation in the gene that encodes beta globin. 
E)  All of these are correct.

Question 10

What are the basic subunits of proteins?

Accepted Answer

A)  amino acids 
B)  peptide bonds 
C)  carboxyl groups 
D)  nucleotides 
E)  codons 
A)  amino acids 
B)  peptide bonds 
C)  carboxyl groups 
D)  nucleotides 
E)  codons

Question 11

Match the following descriptions with the appropriate letter.
  
-amino group

Accepted Answer

The answer of Match the following descriptions with the appropriate...

Question 12

The three-dimensional shape of a protein is determined by the

Accepted Answer

A)  order of amino acids. 
B)  temperature of the cells. 
C)  amount of protein present. 
D)  number of amino acids the organism possesses. 
E)  the length of the protein. 
A)  order of amino acids. 
B)  temperature of the cells. 
C)  amount of protein present. 
D)  number of amino acids the organism possesses. 
E)  the length of the protein.

Question 13

PROBLEM
Consider a stretch of DNA (a hypothetical gene) that has the sequence TACGATAGTACCAGGATT on the strand that will be transcribed.
-Now,our hypothetical gene has undergone a mutation.The mutant sequence is TACGATAGTACCCGGATT.Transcribe the mutant sequence into mRNA,and determine the amino acid sequence of the resulting polypeptide chain.Determine if the nucleotide modification produced a different amino acid sequence n the protein.What do you think the consequence of this mutation would be in terms of protein function?

Accepted Answer

The mRNA would read AUGCUAAAUUGGGCCUAA.T

Question 14

What is the role of the promoter sequence in transcription? What would be the effect if there was a mutation in the promoter so that it no longer is recognized as a promoter?

Accepted Answer

The promoter sequence on the DNA is at t

Question 15

Essential amino acids are produced by the body.

Accepted Answer

A) True 
 B)False

Question 16

Explain how genes control traits.Explain how genes are involved in genetic disorders.

Accepted Answer

Most,but not all,genes contain the infor

Question 17

Both miRNA and siRNA

Accepted Answer

A)  block DNA replication. 
B)  block binding of RNA polymerase to the promoter. 
C)  prevent translation of mRNAs. 
D)  prevent processing of the pre-mRNA to mRNA. 
E)  increase gene expression. 
A)  block DNA replication. 
B)  block binding of RNA polymerase to the promoter. 
C)  prevent translation of mRNAs. 
D)  prevent processing of the pre-mRNA to mRNA. 
E)  increase gene expression.

Question 18

Beta globin

Accepted Answer

A)  combines with gamma globin to produce hemoglobin. 
B)  comes in three versions. 
C)  is absent in individuals with sickle cell anemia. 
D)  is the only polypeptide present in hemoglobin. 
E)  is present in a shortened, non-functional form in individuals with sickle cell anemia. 
A)  combines with gamma globin to produce hemoglobin. 
B)  comes in three versions. 
C)  is absent in individuals with sickle cell anemia. 
D)  is the only polypeptide present in hemoglobin. 
E)  is present in a shortened, non-functional form in individuals with sickle cell anemia.

Question 19

Compare and contrast DNA and RNA in terms of structure and function.

Accepted Answer

Answers will vary bu

Question 20

The mRNA carries its message out the nucleus into the cytoplasm.

Accepted Answer

A) True 
 B)False

Match the following descriptions with the appropriate letter. -site of protein synthesis

MATCHING Match the term to the description. -tRNA

The most common mutation responsible for cystic fibrosis

MATCHING Match the term to the description. -Stop codon

Gene regulation is important because

A gene mutation can cause one amino acid of a protein to be substituted for another amino acid.

Consider a stretch of 18 nucleotides on an mRNA molecule.If all 18 of these nucleotides are translated,how many amino acids will this account for?

Which of the following statements is true about RNA polymerase?

Which of the following statements is true about sickle cell anemia?

What are the basic subunits of proteins?

Match the following descriptions with the appropriate letter. -amino group

The three-dimensional shape of a protein is determined by the

What is the role of the promoter sequence in transcription? What would be the effect if there was a mutation in the promoter so that it no longer is recognized as a promoter?

Essential amino acids are produced by the body.

Explain how genes control traits.Explain how genes are involved in genetic disorders.

Both miRNA and siRNA

Beta globin

Compare and contrast DNA and RNA in terms of structure and function.

The mRNA carries its message out the nucleus into the cytoplasm.

Sex and Development

Assisted Reproductive Technology

Changes in Chromosome Number

How Genes Are Transmitted From Generation to Generation

Changes in DNA: Mutations and Epigenetics

Biotechnology

Genetic Testing and Prenatal Diagnosis

DNA Forensics

Genomics

Inheritance of Complex Traits

Cancer and the Cell Cycle

Behavior

Immunogenetics

Genetics and Populations

Human Evolution

A Different World: The Past, Present, and Future of Human Genetics

Biology Basics 1-Cells and Cell Structure

Biology Basics 2-DNA and RNA

Biology Basics 3-Genes, Populations, and the Environment

Filters

Exam 5: Gene Expression and Gene Regulation

Match the following descriptions with the appropriate letter. -site of protein synthesis

MATCHING Match the term to the description. -tRNA

The most common mutation responsible for cystic fibrosis

MATCHING Match the term to the description. -Stop codon

Gene regulation is important because

A gene mutation can cause one amino acid of a protein to be substituted for another amino acid.

Consider a stretch of 18 nucleotides on an mRNA molecule.If all 18 of these nucleotides are translated,how many amino acids will this account for?

Which of the following statements is true about RNA polymerase?

Which of the following statements is true about sickle cell anemia?

What are the basic subunits of proteins?

Match the following descriptions with the appropriate letter. -amino group

The three-dimensional shape of a protein is determined by the

What is the role of the promoter sequence in transcription? What would be the effect if there was a mutation in the promoter so that it no longer is recognized as a promoter?

Essential amino acids are produced by the body.

Explain how genes control traits.Explain how genes are involved in genetic disorders.

Both miRNA and siRNA

Beta globin

Compare and contrast DNA and RNA in terms of structure and function.

The mRNA carries its message out the nucleus into the cytoplasm.

Sex and Development

Assisted Reproductive Technology

Changes in Chromosome Number

How Genes Are Transmitted From Generation to Generation

Changes in DNA: Mutations and Epigenetics

Biotechnology

Genetic Testing and Prenatal Diagnosis

DNA Forensics

Genomics

Inheritance of Complex Traits

Cancer and the Cell Cycle

Behavior

Immunogenetics

Genetics and Populations

Human Evolution

A Different World: The Past, Present, and Future of Human Genetics

Biology Basics 1-Cells and Cell Structure

Biology Basics 2-DNA and RNA

Biology Basics 3-Genes, Populations, and the Environment

Filters