4.1 Gene Expression and RNA Slides

Multiple Choice

Human bone, muscle, and nerve cells all contain the same number of chromosomes with the same complement of genes. What enables these cells to perform specialized activities?

• The ability of some cells to remove unnessary DNA sequences

• The regulation of gene expression within each cell type

• The mutation of genes within each cell type

• The use of different methods of cell division

Draw

Draw lines to match the functions to the correct biomolecule.

Open Ended

CLOSURE: The graph shows the percentages of fox fur in a population between the different seasons of the year. This happens even though the DNA of each fox remains the same!

Explain why the fur of the foxes changes. Use evidence form the information provided. Include reasoning that explains how environmental factors and genes affect this change.