Question 1

What is the function of RNA?

Accepted Answer

Transferring genetic information

Answer

Maintaining cell structure

Answer

Storing genetic information

Question 2

Which type of RNA carries the genetic information from DNA to the ribosomes?

Accepted Answer

messenger RNA (mRNA)

Answer

transfer RNA (tRNA)

Answer

micro RNA (miRNA)

Answer

ribosomal RNA (rRNA)

Question 3

What is the process called when RNA is synthesized from DNA?

Accepted Answer

Transcription

Answer

Replication

Answer

Mutation

Answer

Translation

Question 4

Which of the following is not a type of RNA?

Accepted Answer

Deoxyribonucleic acid (DNA)

Answer

Transfer RNA (tRNA)

Answer

Messenger RNA (mRNA)

Answer

Ribosomal RNA (rRNA)

Question 5

Which enzyme is responsible for synthesizing RNA from DNA during transcription?

Accepted Answer

RNA polymerase

Answer

Ligase

Answer

Helicase

Answer

DNA polymerase

Question 6

What is the structure of RNA?

Accepted Answer

Single-stranded

Answer

Triple-stranded

Answer

Quadruple-stranded

Answer

Double-stranded

Question 7

What is the function of ribosomal RNA (rRNA)?

Accepted Answer

Combining with proteins to form ribosomes

Answer

Encoding proteins

Answer

Carrying amino acids to the ribosomes

Answer

Transferring genetic information

Question 8

What is the main difference between RNA and DNA molecules?

Accepted Answer

RNA molecules are single-stranded while DNA molecules are double-stranded

Answer

RNA molecules contain thymine while DNA molecules contain uracil

Question 9

Which nucleotide is present in RNA molecules but not in DNA molecules?

Accepted Answer

Uracil

Answer

Thymine

Answer

Adenine

Answer

Cytosine

Question 10

Which of the following is true about the sugar backbone of RNA and DNA molecules?

Accepted Answer

RNA molecules have a different sugar backbone than DNA molecules

Answer

RNA and DNA molecules have the same sugar backbone

Answer

RNA molecules have a longer sugar backbone than DNA molecules

Question 11

Which of the following is true about the base pairing in RNA and DNA molecules?

Accepted Answer

RNA molecules pair adenine (A) with uracil (U) and cytosine (C) with guanine (G)

Answer

DNA molecules pair adenine (A) with guanine (G) and cytosine (C) with thymine (T)

Answer

RNA molecules pair adenine (A) with guanine (G) and cytosine (C) with uracil (U)

Answer

DNA molecules pair adenine (A) with uracil (U) and cytosine (C) with guanine (G)

Answer

RNA molecules pair adenine (A) with thymine (T) and cytosine (C) with guanine (G)

Question 12

Which of the following is true regarding the stability of RNA and DNA molecules?

Accepted Answer

DNA molecules are more stable than RNA molecules

Answer

RNA stability depends on the presence of thymine

Answer

RNA molecules are more stable than DNA molecules

Answer

RNA and DNA molecules have the same level of stability

Question 13

Which of the following is true about the sugar-phosphate backbone of RNA and DNA molecules?

Accepted Answer

Both RNA and DNA molecules have a sugar-phosphate backbone

Answer

DNA molecules have a sugar-phosphate backbone while RNA molecules do not

Answer

RNA molecules have a longer sugar-phosphate backbone than DNA molecules

Answer

RNA molecules have a sugar-phosphate backbone while DNA molecules do not

Question 14

Which of the following is true about the function of RNA and DNA molecules?

Accepted Answer

DNA molecules store genetic information while RNA molecules aid in protein synthesis

Answer

Both DNA and RNA molecules aid in protein synthesis

Answer

Both DNA and RNA molecules store genetic information

Answer

DNA molecules aid in protein synthesis while RNA molecules store genetic information

Question 15

Which type of molecule contains the sugar deoxyribose, RNA or DNA?

Accepted Answer

DNA

Answer

Neither RNA nor DNA

Answer

RNA

Answer

Both RNA and DNA

Question 16

Which type of RNA is responsible for carrying amino acids to the ribosomes during protein synthesis?

Accepted Answer

tRNA

Answer

mRNA

Answer

rRNA

Question 17

What is the function of rRNA?

Accepted Answer

To make up the structure of ribosomes

Answer

To carry amino acids to the ribosomes

Answer

To carry genetic information

Answer

To regulate gene expression

Question 18

Which type of RNA is responsible for carrying the genetic information from DNA to the ribosomes?

Accepted Answer

mRNA

Answer

rRNA

Answer

tRNA

Question 19

Which type of RNA is involved in the process of transcription?

Accepted Answer

mRNA

Answer

rRNA

Answer

tRNA

Question 20

Which type of RNA is essential for the formation and functioning of ribosomes?

Accepted Answer

rRNA

Answer

mRNA

Answer

tRNA

Question 21

What is the function of mRNA (messenger RNA)?

Accepted Answer

To carry genetic information from the DNA to the ribosomes

Answer

To regulate gene expression

Answer

To make up the structure of ribosomes

Answer

To carry amino acids to the ribosomes

Question 22

Which type of RNA is involved in protein synthesis?

Accepted Answer

mRNA

Answer

tRNA

Answer

rRNA

Question 23

Which enzyme is responsible for RNA synthesis during transcription?

Accepted Answer

RNA polymerase

Answer

Helicase

Answer

Ligase

Answer

DNA polymerase

Question 24

What is the process of synthesizing an RNA molecule from a DNA template called?

Accepted Answer

Transcription

Answer

Replication

Answer

Mutation

Answer

Translation

Question 25

Which strand of DNA is used as the template for RNA synthesis during transcription?

Accepted Answer

Template strand

Answer

Coding strand

Answer

Non-template strand

Answer

Complementary strand

Question 26

During transcription, what is the process called when non-coding regions of the RNA molecule are removed?

Accepted Answer

RNA splicing

Answer

RNA replication

Answer

RNA translation

Answer

RNA transcription

Question 27

What is the function of RNA polymerase in transcription?

Accepted Answer

To catalyze the synthesis of RNA molecules

Answer

To break down RNA molecules

Answer

To copy DNA molecules

Answer

To form peptide bonds

Question 28

What is the role of promoters in transcription?

Accepted Answer

To signal the start of a gene sequence and facilitate the binding of RNA polymerase

Answer

To splice out introns from the RNA molecule

Answer

To terminate the transcription process

Answer

To translate the RNA molecule into protein

Question 29

Which of the following is a characteristic of transcription?

Accepted Answer

It occurs in the nucleus of eukaryotic cells

Answer

It occurs in the cytoplasm of prokaryotic cells

Answer

It is a process of protein synthesis

Answer

It involves the synthesis of DNA molecules

Question 30

What is the role of RNA splicing in transcription?

Accepted Answer

To remove introns and join exons together

Answer

To initiate translation of the RNA molecule

Answer

To degrade the RNA molecule

Answer

To add introns to the RNA molecule

Question 31

Which process involves modifying the sequence of RNA molecules?

Accepted Answer

RNA Editing

Answer

Transcription

Answer

Replication

Answer

Translation

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