HEREDITY DNA AND RNA STRUCTURE SCIENCE 10

1. Getting To Know DNA and RNA Structure

2. DNA and RNA
 contain information that will determine their physical and
chemical characteristics.
 A DNA is a double helix molecule composed of
complementary strands of deoxyribonucleotides units. The
complementary base pairs of the DNA are held by
hydrogen bonds.
 RNA is single stranded.
 Examples of RNA types include: mRNA, rRNA and tRNA.
 In DNA, adenine always bonds with thymine, and cytosine
bonds with guanine. In RNA, adenine bonds with uracil,
and cytosine bonds with guanine.

5. Fill in the comparison table below.