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Multiple Choice
Alternative splicing helps explain which of the following?
A
The synthesis of RNA from a DNA template
B
The production of multiple protein variants from a single gene
C
The replication of DNA during cell division
D
The degradation of mRNA in the cytoplasm
Verified step by step guidance
1
Understand the concept of alternative splicing: Alternative splicing is a process during gene expression that allows a single gene to code for multiple proteins. This occurs when certain exons of a gene are included or excluded from the final mRNA produced.
Recognize the role of exons and introns: Genes are composed of exons (coding regions) and introns (non-coding regions). During RNA processing, introns are removed, and exons are spliced together to form the mature mRNA.
Identify how alternative splicing leads to protein diversity: By varying the combination of exons included in the mRNA, alternative splicing can produce different mRNA variants from the same gene, leading to the synthesis of different protein isoforms.
Consider the implications of alternative splicing: This mechanism increases the diversity of proteins that can be produced by a single gene, allowing organisms to adapt and respond to various functional needs without requiring additional genes.
Relate alternative splicing to the options given: Among the options, alternative splicing directly explains 'The production of multiple protein variants from a single gene,' as it is the process responsible for generating different proteins from the same genetic sequence.