Genetics and Molecular Biology

A

siRNA

B

tRNA

C

mRNA

D

rRNA

Explanation Comments

A

DNA is translated directly into protein

B

RNA is transcribed into DNA, which is translated into protein

C

DNA is transcribed into RNA, which is translated into protein

D

Protein is transcribed into RNA, which is translated into DNA

Explanation Comments

A

It catalyzes the formation of peptide bonds during translation

B

It removes introns from pre-mRNA

C

It adds a 5' cap to mRNA

D

It adds a poly-A tail to mRNA

Explanation Comments

A

Tay-Sachs disease

B

Huntington's disease

C

Cystic fibrosis

D

Sickle cell anemia

Explanation Comments

A

Transformation

B

Transcription

C

Transduction

D

Conjugation

Explanation Comments

A

Primase

B

DNA helicase

C

DNA polymerase III

D

DNA ligase

Explanation Comments

A

Nonsense mutation

B

Frameshift mutation

C

Silent mutation

D

Missense mutation

Explanation Comments

A

Alternative splicing

B

mRNA degradation

C

DNA methylation

D

RNA interference

Explanation Comments

A

It determines the rate of transcription initiation

B

It regulates the activity of the gene product

C

It stabilizes the mRNA molecule

D

It codes for the amino acid sequence of a protein

Explanation Comments

A

Nonsense mutation

B

Frameshift mutation

C

Silent mutation

D

Missense mutation

Explanation Comments

Which of the following is not a type of RNA involved in protein synthesis?

Explanation:

What is the central dogma of molecular biology?

Explanation:

What is the function of the spliceosome in gene expression?

Explanation:

Which of the following genetic disorders is caused by a trinucleotide repeat expansion?

Explanation:

What is the term for the process by which bacterial cells take up DNA from their environment?

Explanation:

Which of the following enzymes is responsible for joining Okazaki fragments during DNA replication?

Explanation:

What is the term for a mutation that results in a premature stop codon in the mRNA sequence?

Explanation:

Which of the following is not a mechanism of post-transcriptional gene regulation in eukaryotes?

Explanation:

What is the function of the promoter region in a gene?

Explanation:

Which of the following types of mutations is least likely to result in a change in the amino acid sequence of a protein?

Explanation:

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