Question 1

The secondary structure of a protein is the

Accepted Answer

A) overall shape or conformation of the molecule. 
B) conformation of amino acids in a segment of polypeptide. 
C) identity and sequence of amino acids present. 
D) association of one protein chain with another. 
A) overall shape or conformation of the molecule. 
B) conformation of amino acids in a segment of polypeptide. 
C) identity and sequence of amino acids present. 
D) association of one protein chain with another.

Question 2

Yellow rice is genetically engineered to

Accepted Answer

A) improve drought resistance. 
B) produce beta carotene (Vitamin 
A) . 
C) develop stronger roots. 
D) produce Vitamin 
A) improve drought resistance. 
B) produce beta carotene (Vitamin 
A) . 
C) develop stronger roots. 
D) produce Vitamin

Question 3

The level of protein structure directly determined by the sequence of nucleotides on DNA is

Accepted Answer

A) primary. 
B) secondary. 
C) tertiary. 
D) double helix. 
A) primary. 
B) secondary. 
C) tertiary. 
D) double helix.

Question 4

A protein is a linear polymer composed of

Accepted Answer

A) sugar-amino acid-sugar-amino acid. 
B) base-sugar-base-sugar. 
C) amino acid-amino acid. 
D) lipid-base-lipid-base. 
A) sugar-amino acid-sugar-amino acid. 
B) base-sugar-base-sugar. 
C) amino acid-amino acid. 
D) lipid-base-lipid-base.

Question 5

Only three of the statements below about the chemical components of DNA and RNA are true.Select the false statement.

Accepted Answer

A) Phosphate groups will be negatively charged at pH 7 
B) Polymerization of DNA nucleotides releases water 
C) Only one type of sugar is used to make DNA 
D) The double helix is stabilized by covalent bonds between the strands 
A) Phosphate groups will be negatively charged at pH 7 
B) Polymerization of DNA nucleotides releases water 
C) Only one type of sugar is used to make DNA 
D) The double helix is stabilized by covalent bonds between the strands

Question 6

The backbone structure of DNA is

Accepted Answer

A) sugar-base-sugar-base. 
B) base-phosphate-base-phosphate. 
C) base-base-base-base. 
D) sugar-phosphate-sugar-phosphate. 
A) sugar-base-sugar-base. 
B) base-phosphate-base-phosphate. 
C) base-base-base-base. 
D) sugar-phosphate-sugar-phosphate.

Question 7

X-ray diffraction is a method for

Accepted Answer

A) determining the position of atoms in a crystal. 
B) sequencing the primary structure of polymers. 
C) inserting modified DNA into a cell. 
D) dividing the DNA molecule into pieces for analysis. 
A) determining the position of atoms in a crystal. 
B) sequencing the primary structure of polymers. 
C) inserting modified DNA into a cell. 
D) dividing the DNA molecule into pieces for analysis.

Question 8

A ____________ contains all of the ____________ necessary to run a cell and/or organism.

Accepted Answer

A) genome;genes 
B) enzyme;active sites 
C) codon;amino acids 
D) protein;codons 
A) genome;genes 
B) enzyme;active sites 
C) codon;amino acids 
D) protein;codons

The secondary structure of a protein is the

Yellow rice is genetically engineered to

The level of protein structure directly determined by the sequence of nucleotides on DNA is

A protein is a linear polymer composed of

Only three of the statements below about the chemical components of DNA and RNA are true.Select the false statement.

The backbone structure of DNA is

X-ray diffraction is a method for

A contains all of the necessary to run a cell and/or organism.

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Exam 13: Genes and Life

The secondary structure of a protein is the

Yellow rice is genetically engineered to

The level of protein structure directly determined by the sequence of nucleotides on DNA is

A protein is a linear polymer composed of

Only three of the statements below about the chemical components of DNA and RNA are true.Select the false statement.

The backbone structure of DNA is

X-ray diffraction is a method for

A ____________ contains all of the ____________ necessary to run a cell and/or organism.

Portable Electronics: the Periodic Table in the Palm of Your Hand

The Air We Breathe

Radiation From the Sun

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Health Medicine

Who Killed Drthompson a Forensic Mystery

Filters

A contains all of the necessary to run a cell and/or organism.