Gene Expression Unit Review

Front

What is cell differentiation?

Back

Cell differentiation is the process by which a less specialized cell becomes a more specialized cell type, crucial during embryonic development.

Front

What influences cell differentiation?

Back

DNA is the primary factor that influences cell differentiation, determining which genes are expressed in a cell.

Front

Why do nerve cells and muscle cells function differently?

Back

Nerve cells and muscle cells function differently because different genes are expressed in each type of cell.

Front

What is the role of DNA in gene expression?

Back

DNA contains the instructions for making proteins, and the expression of specific genes leads to the production of different proteins in various cell types.

Front

How many amino acids are coded by the DNA sequence ATC AGC GCT GGC CCC GTA?

Back

6 amino acids are coded by this DNA sequence.

Front

What is a frameshift mutation?

Back

A frameshift mutation is a genetic mutation caused by insertions or deletions of nucleotides that shift the reading frame of the genetic message.

Front

What types of mutations can cause a frameshift?

Back

Insertions and deletions can both cause a frameshift mutation.

Front

What is the amino acid sequence for the mRNA strand AGG-UUC-CUG?

Back

The amino acid sequence is Arg-Phe-Leu.

Front

What is gene expression?

Back

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

Front

What is the significance of the genetic code?

Back

The genetic code is a set of rules that defines how the sequence of nucleotides in DNA is translated into the amino acid sequence of proteins.