Bell Work 2/22 - DNA Structure

Label the diagram. Use these choices: deoxyribose, phosphate group, hydrogen bonds, and base pair.

a

b

c

d

phosphate group

hydrogen bonds

base pair

deoxyribose

Complete each statement below. Adenine (A), guanine (G), cytosine (C), and thymine (T) are the four nitrogenous bases in DNA. ________ always forms hydrogen bonds with guanine (G).

• cytosine (C)
• guanine (G)

• thymine (t)

• adenine (A)

The sequence of ________ carries the genetic information of an organism.

The process of ________ produces a new copy of an organism's genetic information, which is passed on to a new cell.

• replication
• protein synthesis

• transcription

• translation

The double-coiled shape of DNA is called a ________.

• round

• cylindrical

• double helix

• helical

A nucleotide is composed of the following three substances________, __________, and __________.

• Sugar

• Phosphate

• Hydrogen

• Nitrogenous Base