Question

Regarding the assertion and reason, select the correct option.

Assertion [A]: Spliceosomes edit mRNA.
Reasons [A]: Proteins in spliceosomes help in identifying the splicing sites in mRNA.

• A. Both A and R are true and R explains A
• B. Both A and R are true, but R does not explain A
• C. A is true and R is false
• D. Both A and R are false

Answer 1

The correct option is C A is true and R is false

Spliceosomes are complex proteins involved in splicing of mRNA, which involves the removal of introns and binding of exons. Spliceosomes are made up of snRNPs (commonly pronounced ‘snurps’) and proteins. The snRNPs help identify the areas to be spliced on mRNA.