Objective 15 Quiz cloned 5/13/2021

Last updated almost 5 years ago

7 questions

4

Library

Objective 15 Quiz cloned 5/13/2021

Last updated almost 5 years ago

7 questions

4

When a sample gets to the lab for the RT-PCR test, first the genetic material is extracted from the collected cells. Then this mixture consists only of a person's DNA and the Virus RNA (if present). Reverse transcription is completed to "convert" any viral RNA (if present) into DNA. Once this step is complete PCR is used to make thousands of copies of the DNA so that it can be searched more easily for the viral presence. (answer the following and please number your answers accordingly)
1. How is the sample for the RT-PCR test acquired? In other words, how is this test given?
2. What part of Sars CoV-2 does RT-PCR identify the presence of?
3. In our cells, weak hydrogen bonds between base pairs are broken by helicase during DNA replication, in the PCR machine, what is used to break these bonds and separate the strands?
4. What is a con/drawback of the RT-PCR test?

4

When Covid-19 vaccines enter our body all of the following take place EXCEPT...

4

What differentiates the Covid vaccines from other vaccines?

4

DNA strands with the following numbers of base pairs are placed in the wells of the gel shown. 90bp, 400bp, 800bp, 1,100bp. Which of the letter marks where the 400bp strand would be found once the gel is turned on?

Which of the following occur when Sars CoV-2 enters our body? (select all that apply)

When a sample gets to the lab for the RT-PCR test, first the genetic material is extracted from the collected cells. Then this mixture consists only of a person's DNA and the Virus RNA (if present). Reverse transcription is completed to "convert" any viral RNA (if present) into DNA. Once this step is complete PCR is used to make thousands of copies of the DNA so that it can be searched more easily for the viral presence. (answer the following and please number your answers accordingly) 
How is the sample for the RT-PCR test acquired? In other words, how is this test given?
What part of Sars CoV-2 does RT-PCR identify the presence of? 
In our cells, weak hydrogen bonds between base pairs are broken by helicase during DNA replication, in the  PCR machine, what is used to break these bonds and separate the strands?
What is a con/drawback of the RT-PCR test?

True story: In East Aurora, New York at an acupuncture clinic, a woman offered Covid-19 tests. When people called to make appointments, she told people (including myself) they could use the test to detect if they currently had Covid-19 and were contageious. However, people found out she was using a test that would not work for that! She got shut down and in a lot of trouble for false advertising/ false test results.

She most likely was using which test? (make sure it is also properly matched to what it tests for)

When Covid-19 vaccines enter our body all of the following take place EXCEPT...

What differentiates the Covid vaccines from other vaccines?

Select all that apply (you don't need to explain your answer)

DNA strands with the following numbers of base pairs are placed in the wells of the gel shown. 90bp, 400bp, 800bp, 1,100bp. Which of the letter marks where the 400bp strand would be found once the gel is turned on?

Which of the following occur when Sars CoV-2 enters our body? (select all that apply)

Transcription (DNA--> RNA)

The Sars CoV-2 DNA is replicated  

Translation (RNA-->Protein)

Sars CoV-2 uses our cells ribosomes to build copies of its protein coat and spikes

It uses its proteins to enter cells of our nervous system (brain and spinal cord)

The Sars CoV-2 RNA is replicated

It uses its proteins to enter cells of our respiratory system (lung, nose, throat)

It uses its proteins to enter cells of our muscular system

True story: In East Aurora, New York at an acupuncture clinic, a woman offered Covid-19 tests. When people called to make appointments, she told people (including myself) they could use the test to detect if they currently had Covid-19 and were contageious. However, people found out she was using a test that would not work for that! She got shut down and in a lot of trouble for false advertising/ false test results. 

She most likely was using which test? (make sure it is also properly matched to what it tests for) 

RT-PCR- Sars CoV-2 spike proteins 

RT-PCR- Proteins our body makes to attack Sars CoV-2

Antibody- Proteins our body makes to attack Sars CoV-2

Antigen- Proteins our body makes to attack Sars CoV-2

RT-PCR- RNA 

Antigen- RNA

Antigen- Sars CoV-2 spike proteins

Antibody- RNA

Antibody- Sars CoV-2 spike proteins

Select all that apply (you don't need to explain your answer) 

Lettuce

Banana 

Cheese

Tomato

Orange 

Spinach

Carrot