Biology Unit 6 DNA

How many nucleotides are needed to create a codon?

• 1

• 2

• 3

• 4

Which one of the following is not part of a nucleotide for DNA?

• Deoxyribose sugar

• Phosphate

• Nitrogenous base - uracil

• Nitrogenous base - cytosine

Which of the following is not part of an RNA nucleotide?

• Ribose sugar

• Phosphate

• Nitrogenous base - adenine

• Nitrogenous base - thymine

What holds the base-pairs together?

• chemical bonds

• hydrogen bonds

• phosphodiester bonds

• ionic bonds

What is a sequence of nucleotides that directs the synthesis of a product (ex: protein)

• gene

• transfer RNA

• codon

• DNA polymerase

Tags

NGSS.HS-LS1-1

Where does DNA replication occur?

• nucleus

• ribosome in cytoplasm

• mitochondria

• ribosome in chloroplast

A sample of DNA is 20% cytosine. What percentage would be guanine?

• 80%

• 20%

• 40%

• 30%

What organelle makes it possible for mRNA to be translated into proteins?

• nucleus

• DNA

• Golgi body

• ribosome

Anticodon is found on

• DNA

• mRNA

• tRNA

• ribosome

Codon is found on

• DNA

• mRNA

• tRNA

• ribosome