16.2

Quiz
•
Science
•
12th Grade
•
Hard
+2
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following statements correctly describes Archibald Garrod's hypothesis for how "inborn errors of metabolism" such as alkaptonuria occur?
Metabolic enzymes require vitamin cofactors, and affected individuals have significant nutritional deficiencies.
Certain metabolic reactions are carried out by ribozymes, and affected individuals lack key splicing factors.
Genes dictate the production of specific enzymes, and affected individuals have genetic defects that cause them to lack certain enzymes.
Enzymes are made of DNA, and affected individuals lack DNA polymerase.
Tags
NGSS.HS-LS3-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A particular triplet of bases in the template strand of DNA is 5′-AGT-3′. What would be the corresponding codon for the mRNA that is transcribed?
3′-UCA-5′
3′-UGA-5′
5′-TCA-3′
3′-ACU-5′
Tags
NGSS.HS-LS1-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Refer to the metabolic pathway illustrated. If A, B, and C are all required for growth, a strain that is mutant for the gene-encoding enzyme A would be able to grow on medium supplemented with which of the following nutrient(s)?
nutrient A only
either nutrient B or C
nutrient C only
nutrients A and C
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following sequences of nucleotides are possible in the template strand of DNA that would code for the polypeptide sequence Phe-Leu-Ile-Val?
5′-TTG-CTA-CAG-TAG-3′
5′-AUG-CTG-CAG-TAT-3′
3′-AAA-AAT-ATA-ACA-5′
3′-AAA-GAA-TAA-CAA-5′
Tags
NGSS.HS-LS1-1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following statements best describes the significance of the TATA box in the promoters of eukaryotes?
It is the recognition site for the binding of a specific transcription factor.
It sets the reading frame of the mRNA during translation.
It is the recognition site for ribosomal binding during translation.
It is the recognition site for ribosomal binding during transcription.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In an experimental situation, a student researcher inserts an mRNA molecule into a eukaryotic cell after she has removed its 5′ cap and poly-A tail. Which of the following processes would you expect her to find to have occurred?
The mRNA is quickly converted into a ribosomal subunit.
The cell adds a new poly-A tail to the mRNA.
The cell adds a new poly-A tail to the mRNA.
The molecule is digested by enzymes because it is not protected at the 5′ end.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Use this model of a eukaryotic transcript to answer the following question. E = exon and I = intron 5′-UTR E1 I1 E2 I2 E3 I3 E4 UTR-3′ Which components of the previous molecule will also be found in mRNA in the cytosol?
5′-UTR I1 I2 I3 UTR-3′
5′-E1 E2 E3 E4-3′
5′-UTR E1 E2 E3 E4 UTR-3′
5′-E1 I1 E2 I2 E3 I3 E4-3′
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