2022-2023 Biology 2nd Semester Final Review Set 1

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

Which of the following are the bases for RNA?

• adenine, uracil, thymine, and guanine

• adenine, uracil, guanine, and cytosine

• adenine, thymine, guanine, and cytosine

• adenine, uracil, thymine, and cytosine

In RNA which is a correct base pairing?

• A with G

• G with T

• A with U

• A with T

Name this structure

• double helix

• nucelotide

• twisted ladder

• hydrogen bond

DNA replication results in two DNA molecules,

• each one with two original strands
• each one with two new strands
• each one with one new strand and one original strand
• one with two new strands and the other with two original strands

Name this structure

• double helix
• nucelotide
• twisted ladder
• hydrogen bond