Unit 5 Gene Expression Review

Front

What is this molecule? What does it do?

Back

tRNA, Transporting amino acids to the ribosome and verifying that the appropriate amino acid is incorporated into the elongating protein chain.

Front

Why do cells with the same genetic material develop into different types of cells?

Back

Because internal and external stimuli can trigger the activation of specific genes in the DNA of cells

Front

What enables human bone, muscle, and nerve cells to perform specialized activities despite having the same number of chromosomes and genes?

Back

The regulation of gene expression within each cell type

Front

During the process of differentiation, what happens to DNA?

Back

Only specific sections of DNA sequence are activated to determine the structure and functions of a body cell.

Front

In the diagram, the process occurring in the nucleus of the cell is ----

Back

transcription, the decoding of DNA into a messenger RNA molecule

Front

Back

H

Front

What is true about cell differentiation?

Back

Different cells have the same DNA, but express different genes--leading to specialization

Front

Stem cells are ____________________.

Back

undifferentiated cells that can turn into other types of cells

Front

A type of mutation that involves the loss of one or more nucleotides from a segment of DNA.

Back

Deletion

Front

Examples of Frameshift mutations: Deletion & Silent, Insertion & Missense, Deletion & Insertion, Insertion & Substitution

Back

Deletion & Insertion