Front

What explains the functional differences between nerve cells and muscle cells?

Back

In both kinds of cells, different genes are expressed.

Front

What occurs during gene expression?

Back

The gene is activated and used in protein synthesis.

Front

What are the types of post-transcriptional modifications in gene expression?

Back

Alternative splicing, RNA editing, addition of a 5' cap and a poly-A tail.

Front

What leads to an increase in the rate of transcription?

Back

Acetylation of histone proteins.

Front

What does gene regulation in eukaryotes allow for?

Back

Cell specialization.

Front

Define gene expression.

Back

The process by which information from a gene is used to synthesize a functional gene product, usually a protein.

Front

What is alternative splicing?

Back

A process that allows a single gene to code for multiple proteins by varying the combination of exons included in the final mRNA.

Front

What role does DNA methylation play in gene regulation?

Back

DNA methylation typically represses gene expression by preventing transcription factors from binding to the DNA.

Front

What is the function of a 5' cap in mRNA?

Back

The 5' cap protects mRNA from degradation and assists in ribosome binding during translation.

Front

What is the significance of RNA editing?

Back

RNA editing can alter the nucleotide sequence of mRNA, potentially changing the protein that is produced.