Question 1

A short segment of an mRNA molecule is shown below.The polypeptide it codes for is also shown: 5′-AUGGUGCUGAAG-3′: methionine-valine-leucine-lysine
Assume that a mutation in the DNA occurs so that the fourth base (counting from the 5′ end) of the messenger RNA now reads A rather than G.What sequence of amino acids will the mRNA now code for? (You do not need a copy of the genetic code to answer the question.)

Accepted Answer

A)   methionine-valine-leucine-lysine
B)   methionine-lysine-leucine-lysine
C)   methionine-leucine-leucine-lysine
D)   methionine-valine-methionine-lysine
E)   methionine-methionine-leucine-lysine

Question 2

Different domains in proteins impart different functional capabilities.

Accepted Answer

A) True 
 B)False

Question 3

Describe each of the following parameters that relate to the structure and function of tRNA:
(a) four functional domains
(b) Wobble hypothesis

Accepted Answer

(a)The four functional domains are amino...

Question 4

Draw and label the spatial and polarity relationships among the following translational components: ribosome (small and large subunits),growing polypeptide chains,amino acid attachment to tRNA,mRNA,codon,and anticodon.

Accepted Answer

The answer of Draw and label the spatial and polarity...

Question 5

When a metabolic block occurs in a biochemical pathway,it is common for amount of the substance immediately prior to that block to increase.

Accepted Answer

A) True 
 B)False

Question 6

Which class of protein functions primarily by lowering the energy of activation during a reaction?

Accepted Answer

The answer of Which class of protein functions primarily by...

Question 7

Side groups of amino acids are typically classified under which of the following?

Accepted Answer

A)   polar, nonpolar
B)   linear, circular
C)   alpha, omega
D)   long, short
E)   primary, secondary

Question 8

By their experimentation using the Neurospora fungus,Beadle and Tatum were able to propose the far-reaching hypothesis that ________.

Accepted Answer

A)   prototrophs will grow only if provided with nutritional supplements
B)   several different enzymes may be involved in the same step in a biochemical pathway
C)   the role of a specific gene is to produce a specific enzyme
D)   genetic recombination occurred in Neurospora
E)   more than one codon can specify a given amino acid

Question 9

Electrophoretic separation of HbA from HbS is based on a difference in their ________.

Accepted Answer

The answer of Electrophoretic separation of HbA from HbS is...

Question 10

Knowing that the base sequence of any given messenger RNA is responsible for precisely ordering the amino acids in a respective protein,present two mechanisms by which intrinsic properties of mRNA may regulate the "net output" of a given gene.

Accepted Answer

(a)Final output of a given gene may be i...

Exam 14: Translation and Proteins

Correct Answer
verified

Describe each of the following parameters that relate to the structure and function of tRNA: (a) four functional domains (b) Wobble hypothesis

Correct Answer
verified
(a)The four functional domains are amino...
View Answer

When a metabolic block occurs in a biochemical pathway,it is common for amount of the substance immediately prior to that block to increase.

Correct Answer
verified

Side groups of amino acids are typically classified under which of the following?

Correct Answer
verified

Different domains in proteins impart different functional capabilities.

Correct Answer
verified

By their experimentation using the Neurospora fungus,Beadle and Tatum were able to propose the far-reaching hypothesis that ________.

Correct Answer
verified

Electrophoretic separation of HbA from HbS is based on a difference in their ________.

Correct Answer
verified

Knowing that the base sequence of any given messenger RNA is responsible for precisely ordering the amino acids in a respective protein,present two mechanisms by which intrinsic properties of mRNA may regulate the "net output" of a given gene.

Correct Answer
verified
(a)Final output of a given gene may be i...
View Answer

Which class of protein functions primarily by lowering the energy of activation during a reaction?

Correct Answer
verified

Draw and label the spatial and polarity relationships among the following translational components: ribosome (small and large subunits),growing polypeptide chains,amino acid attachment to tRNA,mRNA,codon,and anticodon.

Correct Answer
verified

Exam 14: Translation and Proteins

Correct AnswerverifiedShow Answer

Describe each of the following parameters that relate to the structure and function of tRNA: (a) four functional domains (b) Wobble hypothesis

Correct Answerverified(a)The four functional domains are amino...View AnswerShow Answer

When a metabolic block occurs in a biochemical pathway,it is common for amount of the substance immediately prior to that block to increase.

Correct AnswerverifiedShow Answer

Side groups of amino acids are typically classified under which of the following?

Correct AnswerverifiedShow Answer

Different domains in proteins impart different functional capabilities.

Correct AnswerverifiedShow Answer

By their experimentation using the Neurospora fungus,Beadle and Tatum were able to propose the far-reaching hypothesis that ________.

Correct AnswerverifiedShow Answer

Electrophoretic separation of HbA from HbS is based on a difference in their ________.

Correct AnswerverifiedShow Answer

Knowing that the base sequence of any given messenger RNA is responsible for precisely ordering the amino acids in a respective protein,present two mechanisms by which intrinsic properties of mRNA may regulate the "net output" of a given gene.

Correct Answerverified(a)Final output of a given gene may be i...View AnswerShow Answer

Which class of protein functions primarily by lowering the energy of activation during a reaction?

Correct AnswerverifiedShow Answer

Draw and label the spatial and polarity relationships among the following translational components: ribosome (small and large subunits),growing polypeptide chains,amino acid attachment to tRNA,mRNA,codon,and anticodon.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
(a)The four functional domains are amino...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
(a)Final output of a given gene may be i...
View Answer

Correct Answer
verified

Correct Answer
verified