Genetics Test Review: DNA & RNA 2022-2023

Who used radioactive bacteriophages to show that DNA is the genetic material?

• Watson and Crick

• Franklin and Wilkins

• Griffith and Avery

• Hershey and Chase

What is the important role that Rosalind Franklin played in genetics?

• Discovered that DNA is the genetic material.

• Created the first model of DNA in 1953.

• Made the first picture of DNA using X-Ray crystallography

• Discovered that A = T and C = G

Who contributed to the knowledge of the structure of DNA by discovering A% = T% and C% = G%?

• Rosalind Franklin

• Erwin Chargaff

• Oswald Avery

• Martha Chase

How did Watson and Crick contribute to genetics?

• Discovered the nitrogen base pairings

• Discovered that DNA is the genetic material.

• Made the first model of DNA in 1953.

• Discovered the sex-linked traits.

Which statement correctly labels the nucleotide?

• 1 = phosphate, 2 = base, 3 = sugar

• 1 = phosphate, 2 = sugar, 3 = base

• 1 = sugar, 2 = base, 3 = phosphate

• 1 = sugar, 2 = base, 3 = phosphate

During translation, the tRNA . . . (select all correct responses)

• attaches to amino acids

• supplies amino acids to the growing protein (polypeptide chain)

• matches to the mRNA

• binds with other tRNAs to form protein

• is transported to the nucleus along with mRNA

How do you organize a strand of mRNA into codons?

• Divide into pairs of nitrogen bases

• Divide into set of three consecutive nucleotides (nitrogen bases)

• Divide into two sets of 23 nitrogen bases

• Single nitrogen bases

Divide this set of nucleotides into codons:

AUGUCCUGA

• A U G U C C U G A

• AU GU CC UG A

• AUG UCC UGA

• AUGU CCUG A

Which answer represents the complimentary base pairing in DNA? (Select all correct answers)

• guanine equals the amount of uracil

• cytosine equals the amount of thymine

• adenine equals the amount of thymine

• guanine equals the amount of cytosine

Which process does not provide new genetic combinations?

• mutations

• crossing over

• sexual reproduction

• cytokinesis