Question

Base your answer on the diagram below which represents a portion of a double-stranded

DNA molecule and on your knowledge of biology.

The Symbol labeled 3 represents a molecule of a

A) 5-carbon sugar
B) 6-carbon sugar
C) 3-carbon sugar
D) 4-carbon sugar

Answer 1

A

Step-by-step explanation:

Each nucleotide in a DNA sequence is made up of:

• A pentose (5 carbon) sugar
• 1 nitrogenous base
• 1 phosphate group

The pentose sugar is even shaped like a pentagon, so when in doubt simply count the sides!

Hope this helped you today :)