DNA/RNA Structure & Function Review

Molecules of DNA are composed of long chains of

• amino acids

• fatty acids

• monosaccharides

• nucleotides

Which of the following is part of a molecule of DNA?

• deoxyribose, phosphate, ribose

• deoxyribose, phosphate, nitrogen base

• ribose, phosphate, nitogen base

• ribose, phosphate, amino acids

During DNA replication, a complementary strand of DNA is made for each original DNA strand. So, if a portion of the original strand is AACGTAG, then the new strand will be

• TTGCATG

• AAGTATC

• CCTAGCT

• GGATCGA

In RNA molecules, adenine is complementary to

• cytosine

• thyamine

• guanine

• uracil

What does semi-conservative mean in reference to DNA?

• Each molecule has two new strands of DNA.

• One molecule has two new strands and the other had the two original strands of DNA.

• One molecule has one new strand and one original strand of DNA.

• Each molecule has two original strands of DNA.

In eukaryotes, DNA....

(Remember, YOU are a Eukaryote!)

• is located in the nucleus

• is located int he ribosomes

• floats freely in the cytoplasm

• is ciruclar

Segments of DNA, called genes, contain instructions for assembling ____________________.

• pyrimidines

• proteins

• nucleosomes

• purines

What is the DNA twisted ladder shape known as?

• Twizzler

• Jacob's Ladder

• Double Helix

• Double Turn

Which is the BEST description of DNA's structure?

• twisted ladder

• single stranded nucleotides

• double helix

• none of the above

Who built the first model of DNA?

• Franklin

• Pauling & Ludwig

• Watson & Crick

• Einstein