Question

1. DNA is formed by building blocks called __________.

   		nucleotides
   		nitrogenous bases
   		polypeptides
   		deoxyribose

0.5 points   

QUESTION 2

1. What does DNA stand for?

   		Double-stranded Nucleic Acid
   		Ribonucleic acid
   		Deoxyribonucleic Acid
   		Double-helix Nucleic Acid

0.5 points   

QUESTION 3

1. The nucleotides of DNA are held together by ___________.

   		ionic bond
   		hydrogen bond
   		phosphodiester bond
   		sugar-phosphate backbone

0.5 points   

QUESTION 4

1. DNA nucleotides with one-carbon nitrogen ring bases are called ________.

   		adenines
   		purines
   		pyrimidines
   		guanines

0.5 points   

QUESTION 5

1. Basic structure of nucleotide includes the following type(s) of chemical components.

   		Phosphate group
   		Deoxyribose sugar
   		Nitrogenous base
   		All of the above

0.5 points   

QUESTION 6

1. Which of the following is not a nucleotide in DNA?

   		adenine
   		guanine
   		cytosine
   		uracil

0.5 points   

QUESTION 7

1. What is the complementary DNA strand of the following sequence 3’ ATGGCT 5’?

   		5’ ATGGCT 3’
   		3’ TCGGTA 5’
   		3’ ATGGCT 5’
   		5’ TACCGA 3

0.5 points   

QUESTION 8

1. DNA is polar because of the ____________.

   		phosphate group
   		deoxyribose sugar
   		nitrogenous base
   		hydrogen bond

0.5 points   

QUESTION 9

1. What is the complementary DNA strand of the following sequence 5’ GATACT 3’?

   		5’ GATACT 3’
   		3’ GATACT 5’
   		3’ CTATGA 5’
   		5’ TCATAG3’

0.5 points   

QUESTION 10

1. The following pairing of DNA nucleotides is correct, except ___________.

   		Adenine with thymine
   		Cytosine with guanine
   		Purine with pyrimidine
   		Guanine with adenine

Answer 1

DNA is formed by building blocks called nucleotides

The nitrogenous bases and deoxyribose are part of the nucleotides while polypeptides are part of proteins. The correct answer is nucleotide

What does DNA stand for?

DeoxyriboNucleic Acid (DNA)

Which of the following is not a nucleotide in DNA?

Uracil is part of the mRNA.

What is the complementary DNA strand of the following sequence 3’ ATGGCT 5’?

Remember that the complementary strand goes from the opposite direction and Thymine is substituted by Adenine, and guanine is substituted by cytosine. The correct answer is 5’ TACCGA 3

DNA is polar because of the phosphate group.

The DNA molecule is polar because it has a phosphate group which is negatively charged at the 5’
What is the complementary DNA strand of the following sequence 5’ GATACT 3’?

Remember that the complementary strand goes from the opposite direction and Thymine is substituted by Adenine, and guanine is substituted by cytosine. The correct answer is 3’ CTATGA 5’
The following pairing of DNA nucleotides is correct, except
Guanine with adenine. Guanine goes with cytosine and adenine goes with thymine