DNA Replication Semester Test Review

If a DNA molecule is 22% adenine in any organism, which percentage of thymine will that DNA molecule contain?

• 22%

• 28%

• 44%

• 56%

The diagram below shows an enzyme unwinding DNA strands for replication. What is the outcome for each DNA strand at the end of replication?

• Each strand will degrade to form a different type of nucleotide.

• Each strand will be translated to build protein molecules.

• Each strand will separate to make two single-stranded DNA molecules.

• Each strand will serve as a template for producing a complementary DNA strand.

Which image correctly represents a strand of human DNA?

• Option A

• Option B

• Option C

• Option D

Pick the complementary DNA strand to the following: A T C A G A

• T A G T C T

• U A G U C A

• A T C A G A

• G C T G A G

What are the three parts of a nucleotide?

• Sugar, Phosphate, and Hydrogen

• Phosphate, Base, and Sugar

• Base, Adenine, and Sugar

• Base, Hydrogen bond, and Phosphate

The image shows a section of one strand of a DNA molecule during replication. Which answer choice below correctly shows the strand after DNA replication?

• A

• B

• C

• D

The Universal Genetic Code Table can be used to determine the gene product of a given nucleotide sequence. The table below represents the transcription of a short peptide sequence in a human cell. Place the amino acid abbreviations that correspond to the nucleotide sequence when it is translated. DNA: TTG CTG TGT GAG GCA mRNA: AAC GAC ACA CUC CGU Protein (peptide sequence):

• Asn

• Lys

• Ser

• Ile

• Asp

Tags

NGSS.HS-LS1-1

An RNA sequence includes 15 codons. How many amino acids does this sequence encode?

• 3

• 5

• 15

• 45

An RNA codon chart is shown. For which amino acid sequence does the RNA sequence UUUCCUCAA code?

• leucine-threonine-glutamic acid

• phenylalanine-proline-glutamine

• phenylalanine-proline-histidine

• serine-histidine-glutamine

Which DNA sequence results in an identical, new sequence during both replication and transcription?

• ACTC

• TCTC

• AGAG

• ACAC