Unit 2: Reteach

Unit 2:Reteach

Top 8 Most Missed

Question Stats

71.1% got the answer wrong.

​Wrong Answer

28.9% got the answer right.

​Right Answer

Multiple Choice

What is represented by the structure labeled 1?

• amino acid

• ribosome

• tRNA

• mRNA

Question Stats

66.47% got the answer wrong.

​Wrong Answer

33.53% got the answer right.

​Right Answer

Multiple Choice

Which mutation would change the greatest number of amino acids in a protein?

• the deletion of a single adenine nucleotide in the middle of a gene

• the substitution of a thymine nucleotide with a cytosine nucleotide near the beginning of a gene

• the addition of the nucleotides that make up an additional stop codon to the end of a gene

• the insertion of a thymine, a guanine, and an adenine nucleotide in that order at the start of a gene

Question Stats

57.8% got the answer wrong.

​Wrong Answer

34.68% got the answer right.

​Right Answer

​Did not Answer

6.98%

Question Stats

49.42% got the answer wrong.

​Wrong Answer

50.58% got the answer right.

​Right Answer

Multiple Choice

Point mutations fall into this category of gene mutations, and are the most common type.

• Base Substitution

• Deletion

• Insertion

Question Stats

48.26% got the answer wrong.

​Wrong Answer

51.74% got the answer right.

​Right Answer

Multiple Choice

A mutation in DNA deletes a guanine as shown below.

Original DNA sequence:
TATGAACTGGAA

Mutated DNA sequence:
TATAATTGGAA

Compared to a protein produced by the original DNA sequence, a protein produced by the mutated sequence will differ in —

• a single amino acid

• all amino acids that come after the mutation

• the amino acids that come before the mutation

• all of the amino acids

Question Stats

55.23% got the answer wrong.

​Wrong Answer

44.77% got the answer right.

​Right Answer

Multiple Choice

Which process is identified by number 1 in the diagram?

• replication

• transcription

• translation

• transmutation

Question Stats

52.91% got the answer wrong.

​Wrong Answer

47.09% got the answer right.

​Right Answer

Multiple Choice

Which of the following describes the process labeled by the arrow in the diagram above?

• mRNA is transforming itself into tRNA.

• DNA is replicating an exact copy of itself.

• DNA is transcribing genetic information to mRNA.

• mRNA is translating the genetic code into a protein.

Question Stats

59% got the answer wrong.

​Wrong Answer

63.37% got the answer right.

64.53% got the second answer right.

​Right Answer

Multiple Select

Which of the following nitrogenous bases are part of the DNA structure in humans, dogs, and cats?

Select TWO correct answers.

• Adenine

• Ribose

• Deoxyribose

• Thymine

• Uracil

Multiple Choice

Which sequence is the complementary strand of the DNA sequence TAACGCAT?

• ATTGCCTA

• UAACGCAU

• TAACGCAT

• GCCTATCG

Poll

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