6.2.7 - Post Transcriptional Modification

Question 1

What Are The Post Transcriptional Modification Methods?
(2 Points)

Answer 1

~ Splicing.

~ Alternative splicing.

Question 2

What Does The DNA Code, Within Eukaryotic Cells Contain?

Answer 2

Several non-coding sections.

Question 3

What Are Non-Coding Sections Of DNA Called?

Answer 3

Introns.

Question 4

What Are Coding Sections Of DNA Called?

Answer 4

Exons.

Question 5

Describe The Process That Happens Before Splicing
(2 Points)

Answer 5

~ During transcription, eukaryotic cells transcribe both introns and exons, to produce pre-mRNA molecules.

~ Before the pre-mRNA molecules leave the nucleus, splicing occurs.

Question 6

Describe The Process Of Splicing
(3 Points)

Answer 6

~ Introns sections, are removed.

~ Exons sections, are joined together.

~ mRNA produced, only contains coding sequences of the gene.

Question 7

Describe The Process Of Alternative Splicing
(3 Points)

Answer 7

~ Certain introns and exons are removed.

~ This is to form different mRNA strands.

~ Meaning, more than one polypeptide chain can be formed.