Choose the one most appropriate answer for each.
-Post-translational control
A)Influences the amount and kinds of mRNA assembled from structural gene
B)Splicing, capping, and adding a poly-A tail
C)Nuclear envelope selectively regulates passage of transcripts
D)Phosphorylation of translated protein
E)Dosage compensation

Question

Quizplus · Accepted Answer

Post-translational control involves modifications to the protein after translation, such as adding chemical groups like phosphorylation or glycosylation.

Answer: B
 Splicing, capping, and adding a poly-A tail are all examples of post-transcriptional modifications to mRNA that can influence gene expression.

Answer: C
 The nuclear envelope plays a role in controlling which molecules can pass in and out of the nucleus, including mRNA transcripts.

Answer: A
 Post-transcriptional control can influence the amount and types of mRNA that are assembled from a structural gene, which ultimately affects protein expression.

Answer: E
 Dosage compensation is a type of post-transcriptional control mechanism that ensures equal expression of genes on sex chromosomes, which have different numbers of copies in male and female cells.

Choose the One Most Appropriate Answer for Each