DNA structure

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What are the three components of a nucleotide?

Back

1. Deoxyribose sugar (in DNA) 2. Phosphate group 3. Nitrogenous base (adenine, thymine, cytosine, or guanine in DNA)

Front

Which component is NOT part of a nucleotide?

Back

Amino acid is NOT part of a nucleotide.

Front

What is the process called when DNA is copied?

Back

DNA Replication.

Front

What is one function of DNA?

Back

One function of DNA is to code for proteins.

Front

What is the complementary DNA sequence for ATG?

Back

The complementary sequence is TAC.

Front

What are the four nitrogenous bases in DNA?

Back

1. Adenine (A) 2. Thymine (T) 3. Cytosine (C) 4. Guanine (G)

Front

What is the shape of the DNA molecule?

Back

The DNA molecule has a double helix shape.

Front

What is the role of the phosphate group in DNA?

Back

The phosphate group links the sugar of one nucleotide to the sugar of the next nucleotide, forming the backbone of the DNA strand.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and is double-stranded, while RNA contains ribose sugar and is usually single-stranded.