The Genetic Code

The sides of a DNA molecule are made up of sugar molecules alternating with _____________ molecules.

• phosphate

• amino acid

• thymine

• protein

Each group of three DNA bases on a gene codes for a single __________.

• sugar

• amino acid

• gene

• chromosome

Tags

NGSS.HS-LS1-1

Chromosomes are made up mostly of _______________________.

• phosphates

• mRNA

• DNA & proteins

• centromeres

Each __________ on a chromosome contains the information to code for one specific protein.

• order

• uracil

• spindle fiber

• gene

Tags

NGSS.HS-LS1-1

In DNA, adenine pairs with __________.

• thymine

• guanine

• cytosine

• uracil

In DNA, guanine pairs with _____________.

• thymine

• adenine

• cytosine

• uracil

Each gene is located at a specific place on a(n) protein.

• True

• False

Nitrogen bases are molecules that contain nitrogen and other elements.

• True

• False

DNA synthesis is the process by which DNA copies itself.

• True

• False

The genetic code is determined by the sizes of the nitrogen bases.

• True

• False