Biology SOL Review DNA

DNA is a __ helix composed of 2 complementary strands. It has 4 nucleotides composed of either A,T,C, or G.

• tripe

• double

• quadruple

What does the nucleotide A pair with?

• C

• G

• A

• T

What does the nucleotide T pair with?

• T

• A

• G

• C

What does the nucleotide C pair with?

• T

• G

• C

• U

What does the nucleotide G pair with?

• T

• C

• A

• G

The pairing of A with T, and G with C makes DNA replication and protein synthesis possible. True or False?

• True

• False

Tags

NGSS.HS-LS1-1

When DNA needs to divide, __ __ begins.

• DNA replication

• protein synthesis

• cellular respiration

Tags

NGSS.HS-LS1-4

The weak hydrogen bonds that are holding the two strands of DNA together break apart and the DNA 'unzips'. The two original strands of DNA then become templates for new daughter strands of DNA that will form. True or False?

• True

• False

The process of turning DNA into proteins followers a specific order; it starts in the __ and ends at the __.

• nucleus, ribosomes

• ribosomes, nucleus

• lipids, nucleotides

• nucleotides, amino acids

Tags

NGSS.HS-LS1-1

DNA is turned into __.

• messenger RNA (mRNA)

• it stays the same

• mDNA