Question 1

What is the main purpose of PCR?

Accepted Answer

Amplify DNA

Answer

Identify mutations

Answer

Analyze proteins

Answer

Synthesize RNA

Question 2

What enzyme is primarily used in PCR?

Accepted Answer

DNA polymerase

Answer

Helicase

Answer

RNA polymerase

Answer

Ligase

Question 3

What is the first step of the PCR process?

Accepted Answer

Denaturation

Answer

Replication

Answer

Extension

Answer

Annealing

Question 4

What is the role of primers in PCR?

Accepted Answer

To bind to DNA templates

Answer

To separate DNA strands

Answer

To extend DNA strands

Answer

To degrade unwanted DNA

Question 5

Which temperature is typically used for denaturation in PCR?

Accepted Answer

95°C

Answer

60°C

Answer

72°C

Answer

37°C

Question 6

What does DNA sequencing help identify?

Accepted Answer

The order of nucleotides

Answer

The amount of DNA

Answer

The type of protein

Answer

The origin of DNA

Question 7

What is a key difference between PCR and DNA sequencing?

Accepted Answer

PCR amplifies DNA, sequencing determines the order

Answer

PCR involves RNA, sequencing does not

Answer

PCR and sequencing are the same

Answer

PCR uses RNA polymerase, sequencing uses DNA polymerase

Question 8

Which method is most commonly used for DNA sequencing?

Accepted Answer

Sanger sequencing

Answer

Northern blotting

Answer

Western blotting

Answer

ELISA

Question 9

In Sanger sequencing, what is incorporated into the DNA strand to terminate elongation?

Accepted Answer

Dideoxynucleotides

Answer

Deoxynucleotides

Answer

RNA primers

Answer

Ligases

Question 10

Which of the following is required in DNA paternity testing?

Accepted Answer

DNA samples from the father and child

Answer

Protein markers from the child

Answer

Only the father's DNA

Answer

Only the mother's DNA

Question 11

How is DNA extracted for paternity testing?

Accepted Answer

By breaking down cell membranes and isolating DNA

Answer

By using chemical reactions to separate DNA

Answer

By collecting saliva samples

Answer

By synthesizing new DNA in a lab

Question 12

What is a typical result of a successful paternity test?

Accepted Answer

Matching DNA profiles

Answer

Presence of specific proteins

Answer

Mutated genes

Answer

Mismatched genetic markers

Question 13

What is the basic building block of RNA?

Accepted Answer

Nucleotide

Answer

Amino acid

Answer

Fatty acid

Answer

Monosaccharide

Question 14

What are the four bases of RNA?

Accepted Answer

Adenine, Uracil, Cytosine, Guanine

Answer

Uracil, Thymine, Cytosine, Guanine

Answer

Adenine, Thymine, Cytosine, Guanine

Answer

Adenine, Uracil, Thymine, Guanine

Question 15

Which of the following is a key difference between RNA and DNA?

Accepted Answer

RNA contains uracil instead of thymine

Answer

DNA contains uracil

Answer

RNA uses ribose, DNA uses deoxyribose

Answer

RNA is double-stranded

Question 16

What is the function of messenger RNA (mRNA)?

Accepted Answer

To carry genetic information to ribosomes

Answer

To catalyze reactions

Answer

To form the structure of ribosomes

Answer

To replicate DNA

Question 17

What is the process of converting DNA into RNA called?

Accepted Answer

Transcription

Answer

Mutation

Answer

Replication

Answer

Translation

Question 18

In RNA, what replaces thymine found in DNA?

Accepted Answer

Uracil

Answer

Cytosine

Answer

Guanine

Answer

Adenine

Question 19

Which of the following is a type of RNA involved in protein synthesis?

Accepted Answer

All of the above

Answer

rRNA

Answer

tRNA

Answer

mRNA

Question 20

What is the role of tRNA during translation?

Accepted Answer

To bring amino acids to the ribosome

Answer

To transcribe DNA

Answer

To synthesize mRNA

Answer

To replicate DNA

Question 21

What is the role of rRNA in translation?

Accepted Answer

To help form the ribosome structure

Answer

To transcribe DNA

Answer

To catalyze the formation of proteins

Answer

To carry amino acids

Question 22

In PCR, what is the temperature typically used for extension?

Accepted Answer

72°C

Answer

37°C

Answer

95°C

Answer

60°C

Question 23

What is the role of DNA polymerase in PCR?

Accepted Answer

To add nucleotides to the growing DNA strand

Answer

To cut DNA into fragments

Answer

To synthesize RNA

Answer

To unwind the DNA

Question 24

What is a key feature of DNA sequencing?

Accepted Answer

Determining the exact order of nucleotides

Answer

Transcribing RNA from DNA

Answer

Amplifying specific DNA sequences

Answer

Translating RNA into proteins

Question 25

What is the purpose of using dideoxynucleotides in Sanger sequencing?

Accepted Answer

To terminate the DNA chain elongation

Answer

To repair DNA sequences

Answer

To elongate the DNA chain

Answer

To replicate the DNA sequence

Question 26

What type of RNA carries genetic information from DNA to the ribosome?

Accepted Answer

mRNA

Answer

tRNA

Answer

snRNA

Answer

rRNA

Question 27

What is the function of the ribosome during protein synthesis?

Accepted Answer

To assemble amino acids into a polypeptide chain

Answer

To transcribe mRNA

Answer

To degrade unwanted RNA

Answer

To replicate DNA

Question 28

In RNA, what is the base pairing rule?

Accepted Answer

Adenine pairs with uracil, cytosine pairs with guanine

Answer

Adenine pairs with cytosine, guanine pairs with uracil

Answer

Uracil pairs with guanine, cytosine pairs with thymine

Answer

Adenine pairs with thymine, cytosine pairs with guanine

Question 29

What is the purpose of PCR primers?

Accepted Answer

To start the synthesis of a new DNA strand

Answer

To stop DNA replication

Answer

To unwind DNA

Answer

To bind to the mRNA

Question 30

What is the primary structure of RNA?

Accepted Answer

A single strand of nucleotides

Answer

A double helix

Answer

A double strand of nucleotides

Answer

A triple helix

Question 31

Which type of RNA is responsible for carrying amino acids to the ribosome?

Accepted Answer

tRNA

Answer

mRNA

Answer

snRNA

Answer

rRNA

Question 32

How is PCR used in DNA paternity testing?

Accepted Answer

To amplify DNA segments for comparison

Answer

To sequence the entire genome

Answer

To transcribe DNA into RNA

Answer

To synthesize DNA

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