Bio Chapter 4

Spell out DNA

_____ showed that A and T amounts in nucleotides are equal. This means that adenine and thymine form a complementary pair. C and G being equal means that cytosine and guanine form a complementary pair. His work showed the base pairs.

• Watson and Crick

• Franklin

• Watson, Crick, Franklin

• Chargaff

They deduced the structure of DNA

• Watson and Crick

• Franklin

• Watson, Crick, Franklin

• Chargaff

Answer explanation

DNA = 3 letters

answer = 3 people

Their X-rays showed the double helix of DNA

• Watson and Crick

• Franklin

• Watson, Crick, Franklin

• Chargaff

They put the physical model of DNA together.

• Watson and Crick

• Franklin

• Watson, Crick, Franklin

• Chargaff

Answer explanation

There are TWO strands in DNA, so think that

Watson & Crick are TWO people

the monomer of the DNA polymer.

A nucleotide is made up of a...

What are the four nitrogen bases found in DNA?

What type of bond forms between nucleotides?

• covalent bond

• hydrogen bond

• noncovalent bond

• polar bond

• nonpolar bond

What type of bond forms between nitrogen bases?

• covalent bond

• hydrogen bond

• noncovalent bond

• polar bond

• nonpolar bond