CODE_Wk1_CD

What is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA)?

• Transcription

• Mutation

• Replication

• Translation

Explain the role of RNA polymerase in the process of transcription.

• It breaks down RNA into nucleotides.

• It repairs damaged DNA strands.

• It synthesizes proteins from amino acids.

• It catalyzes the formation of RNA using DNA as a template.

What is the function of mRNA in the process of translation?

• mRNA carries specific amino acids to the ribosome and matches them to the tRNA anticodon during translation.

• mRNA helps in DNA replication

• mRNA transports lipids to the ribosome

• mRNA carries the genetic code from the DNA to the ribosome, where it specifies the sequence of amino acids in the protein.

Describe the steps involved in the process of translation.

• Preparation, execution, completion

• Introduction, expansion, conclusion

• Initiation, elongation, termination

• Start, middle, end

What are the three main types of RNA processing that occur in eukaryotic cells?

• Translation, transcription, replication

• Mitosis, meiosis, cytokinesis

• Mutation, recombination, transduction

• Capping, splicing, and polyadenylation

Explain the significance of alternative splicing in RNA processing.

• Alternative splicing only produces one protein isoform from a single gene

• Alternative splicing decreases the diversity of proteins that can be produced

• Alternative splicing has no significance in RNA processing

• Alternative splicing allows for the production of multiple protein isoforms from a single gene, increasing the diversity of proteins that can be produced.

What are the different levels at which gene expression can be regulated?

• Pre-gene, during-gene, post-gene, and after-gene

• Pre-translational, during-translational, post-translational, and after-translational

• Pre-transcriptional, during-transcriptional, post-transcriptional, and after-transcriptional

• Transcriptional, post-transcriptional, translational, and post-translational

Describe the role of transcription factors in the regulation of gene expression.

• Transcription factors regulate the initiation of transcription by binding to specific DNA sequences.

• Transcription factors regulate the translation of mRNA into protein.

• Transcription factors are only involved in DNA replication.

• Transcription factors have no role in gene expression regulation.

What is the primary structure of a protein?

• Sequence of amino acids

• Chain of nucleotides

• Double helix structure

• Combination of lipids and carbohydrates

Explain the significance of amino acid sequence in determining the function of a protein.

• The amino acid sequence determines the protein's structure and shape, which in turn determines its function.

• The function of a protein is determined by the location where it is synthesized

• The amino acid sequence has no impact on the protein's function

• The amino acid sequence only affects the color of the protein