DNA Structure and Replication

1. DNA is found in the _______ of the nucleus.

• golgi apparatus

• chromatin

• plasma membrane

• nitrogen

DNA has four kinds of ______ bases: adenine, guanine, thymine and cytosine.

• hydrogen

• carbon

• nitrogen

• phosphorus

During DNA replication _____ new identical strands are formed.

• 1

• 2

• 3

• 4

DNA nucleotide consists of a 5-carbon sugar called________

• deoxyribose

• glucose

• sucrose

• ribose

When pairing, guanine always pairs with ______

• thymine

• adenine

• itself, because its a beautiful, strong and independent nitrogen base

• cytosine

What base is found on RNA but not DNA?

• Adenine

• Guanine

• Uracil

• Thymine

How many amino acids are attached to a single transfer RNA?

• 1

• 2

• 3

• 4

How many bases are in a codon?

• 1

• 2

• 3

• 4

How many different bases can be found on DNA?

• 1

• 2

• 3

• 4

DNA is a double helix.

• True

• False