snRNPs that are responsible for pre-mRNA splicing are assembled and stored in
A) Cajal bodies.
B) histone locus bodies.
C) speckles.
D) both Cajal bodies and speckles.

Question

Quizplus · Accepted Answer

Cajal bodies and speckles are nuclear structures where snRNPs are assembled and stored before they are transported to the site of splicing. Cajal bodies are more involved in snRNP biogenesis, while speckles are more involved in their storage and recycling. Histone locus bodies are another type of nuclear structure involved in chromatin organization and not directly related to pre-mRNA splicing.

SnRNPs That Are Responsible for Pre-MRNA Splicing Are Assembled and Stored