Question 1

The structural arrangement of DNA is

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Question 2

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is a DNA base sequence with cytosine at the 3' end.

Accepted Answer

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Question 3

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is a RNA base sequence with guanine at the 3' end.
_____ is a pyrimidine nucleoside.

Accepted Answer

The answer of MATCH each of the following terms to...

Question 4

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is uridine.

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Question 5

A correct abbreviation for the following nucleotide is ADP.

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Question 6

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is the DNA sequencing method for the human genome.

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Question 7

The structure below represents a nucleoside.

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Question 8

The structure of the sugar in RNA is shown below.

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Question 9

Relative to the secondary structure of DNA, there is no restriction on the sequence of bases along a polynucleotide chain. The exact sequence carries the genetic information.

Accepted Answer

The sequence of bases along a polynucleotide chain in DNA is not restricted by the secondary structure (the double helix form), and indeed, the specific sequence of these bases is what encodes genetic information.

Question 10

Relative to the secondary structure of DNA, the helices are left handed and the two strands run in same directions relative to their 3'and 5' ends.

Accepted Answer

The secondary structure of DNA typically forms a right-handed helix, and the two strands run in opposite directions (antiparallel) relative to their 3' and 5' ends.

Question 11

The name of the base in the following nucleotide is __________________.

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Question 12

The name of the following nucleotide is_____________________________.

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The answer of The name of the following nucleotide is_____________________________....

Question 13

The following structures is a pyrimidine.

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Question 14

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is process by which mRNA directs protein synthesis.

Accepted Answer

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Question 15

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is the RNA base sequence complementary to the DNA base sequence shown below which codes for Leu−Ala−Phe.
CTAGCATTT

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Question 16

The G-C base pair is the weaker than the A-T base pair as it has two hydrogen bonds whereas the A-T base pair has three.

Accepted Answer

The G-C base pair is stronger than the A-T base pair because it has three hydrogen bonds, whereas the A-T base pair has only two.

Question 17

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is a pyrimidine nucleoside.

Accepted Answer

The answer of MATCH each of the following terms to...

Question 18

If ranked for largest to smallest, the correct order of DNA, mRNA, and tRNA would be DNA > mRNA > tRNA.

Accepted Answer

DNA molecules are typically longer because they contain the genetic blueprint for an organism, mRNA is a copy of a segment of DNA and is usually shorter, and tRNA is even smaller, designed to carry amino acids during protein synthesis.

Question 19

Relative to the secondary structure of DNA, the purine and pyrimidine bases lie inside the helix, in planes perpendicular to the helical axis; the deoxyribose and phosphate groups form the outside of the helix.

Accepted Answer

In the DNA double helix, the purine (adenine and guanine) and pyrimidine (cytosine and thymine) bases are stacked inside the helix, with their planes perpendicular to the helical axis. This arrangement allows for the bases to pair through hydrogen bonding (A with T, and C with G), stabilizing the structure. The deoxyribose sugar and phosphate backbone form the exterior of the helix, providing structural support and protection for the genetic information encoded in the base sequences.

Question 20

A three base sequence called a "codon" codes for one _______________.

Accepted Answer

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Quiz 28: Nucleic Acids

The structural arrangement of DNA is

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term. -_____ is uridine.

A correct abbreviation for the following nucleotide is ADP.

The structure below represents a nucleoside.

The structure of the sugar in RNA is shown below.

Relative to the secondary structure of DNA, there is no restriction on the sequence of bases along a polynucleotide chain. The exact sequence carries the genetic information.

Relative to the secondary structure of DNA, the helices are left handed and the two strands run in same directions relative to their 3'and 5' ends.

The name of the base in the following nucleotide is __________________.

The name of the following nucleotide is_____________________________.

The following structures is a pyrimidine.

The G-C base pair is the weaker than the A-T base pair as it has two hydrogen bonds whereas the A-T base pair has three.

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term. -_____ is a pyrimidine nucleoside.

If ranked for largest to smallest, the correct order of DNA, mRNA, and tRNA would be DNA > mRNA > tRNA.

Relative to the secondary structure of DNA, the purine and pyrimidine bases lie inside the helix, in planes perpendicular to the helical axis; the deoxyribose and phosphate groups form the outside of the helix.

A three base sequence called a "codon" codes for one _______________.