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Unit 5 Test: Molecular Genetics Shortened

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Last updated over 3 years ago
13 questions
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When done, please hit the Submit button at the very bottom of the page that looks like this:

Section 1: DNA & RNA

Question 1
1.

Question 2
2.

Question 3
3.

Question 4
4.

Question 5
5.

Question 6
6.

Section 2: SARS-CoV-2

Watch the first video below, Infection, which shows how SARS-CoV-2 infects and replicates inside human cells.
Text
01:04
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Get ready to answer Question 13 now
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Watch the second video below, Evolution, which shows how SARS-CoV-2 and other viruses may change over time due to mutations.
Question 10
10.

Watch the third video below, Detection, which shows several ways to test whether someone has been infected by the SARS-CoV-2 virus.
Watch the fourth and final animation, Vaccination, which shows how different types of vaccinations for SARS-CoV-2 prevent disease.
Question 11
11.

Question 12
12.

Question 13
13.

Provide Evidence:
Use evidence, from the videos and prior classwork, to justify the claim you made in the above question.

The process of creating an mRNA strand from one side of DNA is called:
Translation
Transcription
DNA Replication
Protein Synthesis
Using the strand of mRNA below along with either of the codon charts, place the amino acids in the correct order.


Stop
Phe
Glu
Lys
Tyr
Ser
Met
Arg
Thr
Asn
What is the function of tRNA in protein synthesis?
To combine with other proteins to form the ribosome where protein synthesis takes place
To match up codons with rRNA to signal the start of protein synthesis
To transfer the amino acids from the cytoplasm to the ribosome where protein synthesis takes place
Suppose a mutation occurs in a portion of DNA and this alters the resulting mRNA that is transcribed. Examine the original and mutated mRNA sequences below and describe how the mutation impacts the resulting protein using either of the codon charts. You may check your work here.

mRNA from original DNA:


mRNA from mutated DNA:



It will cause the protein synthesis to stop early
No amino acid change (silent mutation)
It will cause the resulting amino acid to change
Suppose a mutation occurs in a portion of DNA and this alters the resulting mRNA that is transcribed. Examine the original and mutated mRNA sequences below and describe how the mutation impacts the resulting protein using either of the codon charts. You may check your work here.

mRNA from original DNA:


mRNA from mutated DNA:




It will cause the resulting amino acid to change
No amino acid change (silent mutation)
It will cause the protein synthesis to stop early
Suppose a mutation occurs in a portion of DNA and this alters the resulting mRNA that is transcribed. Examine the original and mutated mRNA sequences below and describe how the mutation impacts the resulting protein using either of the codon charts. You may check your work here.

mRNA from original DNA:


mRNA from mutated DNA:


It will cause the resulting amino acid to change
No amino acid change (silent mutation)
It will cause the protein synthesis to stop early
Identify the parts of the SARS-CoV-2 virus
Question 7
7.

Type the correct part of the virus, indicated by the number 7, in the space below.

Question 8
8.

Type the correct part of the virus, indicated by the number 8, in the space below.

Question 9
9.

Type the correct part of the virus, indicated by the number 9, in the space below.

Using your knowledge of mutations and the graph from the CDC, how would you classify the Delta variant based on current data:
Virus with a selective advantage
Virus with a selective disadvantage
Virus with a neutral mutation
How do DNA and mRNA vaccines produce spike proteins? Drag each item into the correct category.
Has an artificial membrane to allow it into the human cell
Completes the translation process to create spike proteins that mimic SARS-CoV-2 spike proteins
Is brought into a cell through an inactivated adenovirus
Completes transcription prior to translation
mRNA
DNA
Both
The way that genetic variation appears in a population is through:

1) Through new genetic combinations through meiosis
2) Errors occurring during the replication process
OR
3) Mutations caused by environmental factors.

Make a Claim: Based on what you have watched in the videos, as well as what we have learned in class, which type of mutation do you hypothesize led to the Delta variant of SARS-CoV-2?
New genetic combinations through meiosis
Errors occurring during the replication process
Mutations caused by environmental factors