Quiz 2

20問 • 1年前Quiz 2

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問題一覧

What is the central dogma of molecular biology?

DNA to RNA to protein

What is the primary function of DNA in the central dogma of molecular biology?

It provides the instructions for creating RNA, which in turn directs protein synthesis.

What is the name of the process by which DNA is used as a template to synthesize RNA?

Transcription

What is the name of the process by which RNA is used as a template to synthesize protein?

Translation

What is a gene?

A segment of DNA that encodes a molecule that has a function.

Given DNA Strand: 5'-AGCTTGAGCA-3', what is the correct complementary DNA strand?

3'-TCGAACTCGT-5'

What is the name of the enzyme that carries out transcription?

RNA polymerase

What is the name of the region of DNA where RNA polymerase binds to initiate transcription?

Promoter

What is the name of the DNA strand that is identical to the mRNA sequence, except for thymine being replaced by uracil?

Coding strand

What is the name of the RNA molecule that carries the genetic information from DNA to ribosomes?

mRNA

What is the role of tRNA in protein synthesis?

To carry amino acids to ribosomes

During transcription, the following DNA template strand is used: 5'-TACGGTCAA-3’. Which of the following RNA strands will be produced?

5'-AUGCCAGUU-3’

Which of the following statements correctly describes the difference between introns and exons?

Exons are coding regions of a gene that get translated into protein, while introns are non-coding regions that are removed during RNA processing.

What are the functions of the 5' cap and the poly-A tail in pre-mRNA processing?

They enhance the stability of the mRNA and facilitate its export from the nucleus.

What is an anticodon?

A three-nucleotide sequence on tRNA that is complementary to a codon on mRNA

What is the name of the site on the ribosome where tRNA carrying the next amino acid binds?

A site

What is the name of the site on the ribosome where the tRNA carrying the growing polypeptide chain is located?

P site

What triggers the termination of translation in protein synthesis?

The ribosome encounters a stop codon on the mRNA.

What is the role of gene regulation?

To control which genes are expressed in a cell.

Which of the following statements best describes how gene regulation contributes to cellular differentiation?

Gene regulation ensures that only specific genes are activated or silenced in different cell types, leading to specialized functions.

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問題一覧

What is the central dogma of molecular biology?

DNA to RNA to protein

What is the primary function of DNA in the central dogma of molecular biology?

It provides the instructions for creating RNA, which in turn directs protein synthesis.

What is the name of the process by which DNA is used as a template to synthesize RNA?

Transcription

What is the name of the process by which RNA is used as a template to synthesize protein?

Translation

What is a gene?

A segment of DNA that encodes a molecule that has a function.

Given DNA Strand: 5'-AGCTTGAGCA-3', what is the correct complementary DNA strand?

3'-TCGAACTCGT-5'

What is the name of the enzyme that carries out transcription?

RNA polymerase

What is the name of the region of DNA where RNA polymerase binds to initiate transcription?

Promoter

What is the name of the DNA strand that is identical to the mRNA sequence, except for thymine being replaced by uracil?

Coding strand

What is the name of the RNA molecule that carries the genetic information from DNA to ribosomes?

mRNA

What is the role of tRNA in protein synthesis?

To carry amino acids to ribosomes

During transcription, the following DNA template strand is used: 5'-TACGGTCAA-3’. Which of the following RNA strands will be produced?

5'-AUGCCAGUU-3’

Which of the following statements correctly describes the difference between introns and exons?

Exons are coding regions of a gene that get translated into protein, while introns are non-coding regions that are removed during RNA processing.

What are the functions of the 5' cap and the poly-A tail in pre-mRNA processing?

They enhance the stability of the mRNA and facilitate its export from the nucleus.

What is an anticodon?

A three-nucleotide sequence on tRNA that is complementary to a codon on mRNA

What is the name of the site on the ribosome where tRNA carrying the next amino acid binds?

A site

What is the name of the site on the ribosome where the tRNA carrying the growing polypeptide chain is located?

P site

What triggers the termination of translation in protein synthesis?

The ribosome encounters a stop codon on the mRNA.

What is the role of gene regulation?

To control which genes are expressed in a cell.

Which of the following statements best describes how gene regulation contributes to cellular differentiation?

Gene regulation ensures that only specific genes are activated or silenced in different cell types, leading to specialized functions.