Unit 3 Test 1 Remediation

Match

Match the nitrogen base to the correct pair.

• A

• T

• C

• G

T

A

G

C

• T

• A

• G

• C

Multiple Choice

During DNA replication, a DNA strand has the bases CTAGGT. What is the complementary strand of DNA?

• CTAGGT
• GTCCTA
• CAGGTA
• GATCCA

Multiple Choice

DNA replication results in two DNA molecules. What is true about each of the two new DNA molecules?

• Each new DNA molecule contains two original strands.
• Each new DNA molecule is identical to the original DNA molecule.
• Each new DNA molecule has no original strands.
• Each new DNA molecule contains one original strand and one new strand.

Multiple Choice

What mistake was made in the chart?

• 
  DNA is single-stranded while RNA is double-stranded

• DNA remains in the nucleus while RNA leaves the nucleus

• DNA contains ribose while RNA contains deoxyribose.

• DNA has U while RNA has T

Multiple Choice

Cells secrete proteins, often as enzymes, that have been engineered or directed by the DNA in the nucleus. Which processes are involved in protein synthesis?

• transfer to RNA, then to amino acids

• transcription into RNA, then translation into amino acids

• replication of DNA, then transcription into enzymes

• translation into RNA, then replication into DNA

Multiple Choice

What is the complementary messenger-RNA sequence for the DNA sequence shown below?

C-A-A-G-G-T

• C-G-G-T-A-C
• A-U-U-C-C-G
• T-A-A-G-G-U
• G-U-U-C-C-A

Multiple Choice

Which type of RNA carries the DNA code for making a protein to the ribosomes?

• mRNA
• rRNA
• tRNA

Multiple Choice

The purpose of transcription is to create

• a sequence of RNA bases that complements a sequence of DNA bases.

• a sequence of DNA bases that duplicates a sequence of RNA bases.

• a sequence of RNA bases that breaks down a sequence of DNA bases.

• a sequence of DNA bases that deletes a sequence of RNA bases.

Multiple Choice

Original: ATC CAT
Mutation: ATC GCAT
What mutation occurred?

• deletion
• insertion
• silent
• transverse

Multiple Choice

What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A

• Substitution
• Deletion
• Insertion
• Frameshift 

Multiple Choice

DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

• Substitution
• Deletion
• Insertion
• Inversion