DNA Structure And Function (6A) Question Preview (ID: 27119)

The Student Biologist Will Be Able To (6A) Identify Components Of DNA And Describe How Information For Specifying The Traits Of An Organism Is Carried In The DNA.

The genetic code of DNA is based on...
a) the number of nitrogenous bases
b) the order of the nitrogenous bases
c) how condensed the DNA is
d) the 5-carbon sugar and phosphate group

DNA affects the organism's traits by....
a) directing the assembly of amino acids to form proteins
b) determine which traits will be most beneficial to the organism
c) establishing the rules by which all of the elements in the body will form compounds
d) identifying which genetic material should be expressed and which material discarded

Which of the following is NOT a part of a nucleotide of DNA?
a) phosphate group
b) 5-carbon sugar
c) phospholipid
d) nitrogenous base

What is the function of DNA within a cell?
a) DNA serves as a record for cell activities.
b) DNA prevents the genetic codes from mutating.
c) DNA is a blueprint that contains the directions necessary to construct parts of the cell.
d) DNA ensures that only the best characteristics are passed on to the next generation.

DNA is made up of repeating monomers called...
a) monosaccharides
b) fatty acids
c) nucleotides
d) amino acids

The double helix is held together by _____________ that exist between the complementary bases.
a) covalent bonds
b) strong bonds
c) hydrogen bonds
d) ionic bonds

Which of the following correctly describes the structure of DNA?
a) strands of phosphate-nitrogen backbone, with complementary nitrogenous base pairs bound into a double helix
b) strands of sugar-nitrogen backbone, with complementary deoxyribose base pairs bound into a double helix
c) strands of phosphate-sugar backbone, with complementary nitrogenous bases bound into a double helix
d) strands of phosphate-sugar backbone, with complementary nitrogenous base pairs bound into a single helix

DNA stands for...
a) deoxyribonucleic acid
b) deoxyribose acid
c) deribonucleic acid
d) deribose acid

Which of the following is a complementary base pair?
a) Guanine and Thymine
b) Cytosine and Guanine
c) Thymine and Cytosine
d) Adenine and Cytosine

The differences in base order make the DNA of one organism different from the DNA of another organism.
a) True
b) False

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