Unit 5 - Molecular Genetics

Which of the following is NOT part of a molecule of DNA?

• deoxyribose
• nitrogenous base
• phosphate
• ribose

Which of the following is NOT following base pairing rules?

• Adenine/Thymine
• Thymine/Guanine
• Guanine/Cytosine
• Thymine/Adenine

Who is credited for determining that the level of adenine is equal to the level of thymine and the level of guanine is equal to the level of cytosine in a DNA molecule? (A=T, C=G)

• Rosalind Franklin
• James Watson
• Marcus Wilkins
• Erwin Chargaff

All of the following contributed research leading to Watson and Crick's model of DNA except:

• Rosalin Franklin
• Erwin Chargaff
• Bill Gates

A nucleotide consists of

• a sugar, a protein and adenine
• a sugar, an amino acid, and starch
• a sugar, a phosphate and a nitrogenous base
• a starch, a phosphate group, and a nitrogenous base

The scientists credited with establishing the structure of DNA are

• Avery & Chargaff
• Hershey & Chase
• Mendel and Griffith
• Watson & Crick

The base-pairing rules state that the following are base pairs in DNA:

• adenine - thymine; uracil-cytosine
• adenine-thymine; guanine-cytosine
• adenine-guanine; thymine-cytosine
• uracil-thymine; guanine-cytosine

The name of the 5 carbon sugar that makes up a part of the backbone of molecules of DNA is

• glucose
• sucrose
• lactose
• deoxyribose

Which of the following are the monomers (building blocks) of proteins:

• amino acids
• nucleotides
• sugars
• phosphates

True or False: According to DNA base pairing rules for DNA, adenine pairs with cytosine.

• True
• False