Biology Quiz - Evelyn Learning Systems

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Biology Quiz

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Biology Quiz

Biology Quiz

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Biology Quiz

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Question 1 of 10

1. Question
1 points
Hematopoietic stem cells are multipotent, which means that they are
- Antigen-specific cells
- Capable of developing into any blood cells.
- Committed to produce cells of a single lineage
- Not self-renewing
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Question 2 of 10

2. Question
1 points
During conjugation
- Cell to cell contact is required
- Naked DNA is transferred
- Bacteriophage mediates DNA transfer.
- Only plasmid is transferred from donor to recipient
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Question 3 of 10

3. Question
1 points
Immunoglobin in the serum of a newborn will be mostly
- IgM of maternal origin
- IgG of maternal origin
- IgG of endogenous origin
- IgM of endogenous origin
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Question 4 of 10

4. Question
1 points
Which of the following is not a characteristic of most members of the phylum Annelida?
- Hydrostatic skeleton
- Segmentation
- Metanephridia
- Pseudocoelom
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Question 5 of 10

5. Question
1 points
The lub of the lub-dub sound the heart makes is caused by theThe lub of the lub-dub sound the heart makes is caused by the
- Closing of the mitral and tricuspid valves
- Closing of the pulmonary and aortic valves
- Sound of blood rushing into the atria
- Sound of blood rushing into the ventricles
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Question 6 of 10

6. Question
1 points
A high concentration of Glucose-6-P in glycolysis is inhibitory to which of the following enzymes?
- Hexokinase
- Glucokinase
- PFK-1
- PFK-2
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Question 7 of 10

7. Question
1 points
You place a cell in a solution. Over a period of time, you notice that the cell shrinks as if it is losing water. Which of the following seems likely?
- The solution is a strong buffer.
- The solution is an acid.
- The solution has more dissolved solutes than the cell does.
- The solution has fewer dissolved solutes than the cell does.
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Question 8 of 10

8. Question
1 points
Mutations often occur as a result of base substitutions. The most common cause of base substitution is
- Tautomeric shifts
- Meiotic errors
- Base insertions
- Base deletions
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Question 9 of 10

9. Question
1 points
Which of the following are functions of RER?

P. Splicing of polypeptide

Q. Formation of disulfide bond

R. Glycosylation of proteins during translation’

S. Assembly of multi-subunit proteins
- P and Q
- R and S
- P,Q and R
- P,Q,R and S
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Question 10 of 10

10. Question
1 points
Stomatal pores open when
- H+ ions are pumped into the guard cells.
- K+ ions are pumped out of the guard cells.
- Water moves into the guard cells in response to a decrease in water potential in the guard cells.
- Water moves out of the guard cells in response to a decrease in water potential of the guard cells.
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