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FORM FOUR

Authored by Omar Abdirahin Ibrahim

Biology

2nd Grade

Used 4+ times

FORM FOUR
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9 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

1. What is the basis of separation of different DNA

fragments by gel electrophoresis?

a. The size of DNA fragments

b. The positive charge on DNA

c. The sequence of the fragments

d. The presence of a dye

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2. Which of the following statements is accurate for DNA replication in your cells, but not PCR?

a. Ligase is essential.

b. DNA polymerase is stable at high temperatures.

c. DNA primers are required.

d. dNTPs are necessary

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

3. Why is the polymerase chain reaction used?

a. to separate DNA

b. to cut DNA

c. to ligate DNA

d. to amplify DNA

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4. What is the term used for inserting a healthy copy of a gene into a person who has a defective gene?

a. Cloning vector

b. Recombinant DNA

c. Gene therapy

d. Polymerase chain reaction (PCR)

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

5. Which of the following is used to cut DNA molecules in specific locations?

a. Cloning vectors

b. Restriction enzymes

c. Cloning enzymes

d. Polymerase chain reaction

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

6. For what purpose is DNA fingerprinting is used?

a. to sequence DNA from bacteria

b.to identify individuals who have committed crimes

c. to separate DNA fragments

d. to identify single nucleotide polymorphism

7.

OPEN ENDED QUESTION

2 mins • 1 pt

Define Genetic engineering

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Answer explanation

Genetic engineering is the direct manipulation of an organism’s genes using biotechnology.

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