DNA Structure Quiz Review

Click the Box that represents the phosphate.

Click the Box that represents the Nitrogenous Base.

Click the Box that represents the Deoxyribose Sugar.

Which diagram correctly represents a Nucleotide using the molecules and their elements in this chart.

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Write the complementary sequence to this given DNA Strand:

ATGCA

​ (a)   ​ (b)   ​ (c)   ​ (d)   ​ (e)  

• T
• A
• C
• G

If you are given 22 % Adenine, then you will have what percentage of thymine?

If you have 22% thymine and 22% adenine what will the percentage for cytosine and guanine be?

• 56% cytosine

  56% guanine

• 28% cytosine

  28% guanine

• 56% cytoside

  28% guanine

• 22% cytosine

  22% guanine

The ​ (a)   is the structure that is being pointed to in this image.

• Nucleotide
• cytosine
• guanine
• ATP
• RNA

The arrow indicates...

• the bond between adjacent phosphate and deoxyribose molecules

• the junction of introns and exons in the sense strand of DNA

• hydrogen bond between complimentary nucleotides

• the junction of a codon and a DNA triplet

A student compares the DNA sequence of three unrelated organisms. What similarity will the student find in the DNA sequences?

• The DNA sequences of all three organisms are made up of four nucleotides: A, T, C, and G.

• The DNA sequences of all three organisms have the same orders of base pairs.

• The DNA sequences of all three organisms are made up of five nucleotides: A, T, U, C, and G

• The DNA sequences of all three organisms have very little in common.