The Splicing Regulatory Protein (SR)identifies Exons to Be Included in MRNA

question 7

Multiple Choice

The splicing regulatory protein (SR) identifies exons to be included in mRNA. How might SR proteins regulate alternative splicing?

• A)There are alternative binding regions for these proteins within each exon.
• B)There are alternative SR proteins in different tissues at different stages of development.
• C)The SR proteins lose the ability to bind to exon splice suppressors.
• D)The SR proteins recruit the splicing small RNAs (U1, U2,…)or unusual ones.
• E)The spliceosome complex can bind only to regions with bound SR proteins.

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