Transcription, mRNA Processing, and Translation

Question 1

TATA sequence

Answer 1

A TATA box is a DNA sequence that indicates where a genetic sequence can be read and decoded. It is a type of promoter sequence, which specifies to other molecules where transcription begins. Transcription is a process that produces an RNA molecule from a DNA sequence.

Question 2

TATA Binding protein

Answer 2

A general transcription factor that binds specifically to a DNA sequence called the TATA box. This DNA sequence is found about 30 base pairs upstream of the transcription start site in some eukaryotic gene promoters.

Question 3

Rat1 Exonuclease

Answer 3

A nuclear 5′–3′ riboexonuclease that together with its partner Rai1 (Xue et al. 2000) hydrolyzes single-stranded RNA with 5′-monophosphate en

Question 4

Alternative Splicing

Answer 4

A process that enables a messenger RNA (mRNA) to direct synthesis of different protein variants (isoforms) that may have different cellular functions or properties. It occurs by rearranging the pattern of intron and exon elements that are joined by splicing to alter the mRNA coding sequence.

Question 5

Steps of mRNA processing:

Answer 5

Transcription

• Initiation
• Elongation
• Termination