Gene Differentiation
Presentation
•
Science
•
9th Grade
•
Hard
Joseph Anderson
FREE Resource
5 Slides • 7 Questions
1
Cell Differentiation & Cell Specialization
2
Open Ended
When you hear the word cell differentiation, what comes to mind?
3
4
Open Ended
What do you think controls whether a stem cell differentiates into a muscle cell, blood cell, or brain cell?
5
6
*Some genes are:
1. expressed at all times
2. expressed in certain environmental conditions.
3. expressed at particular times.
4. expressed only in certain kinds of cells.
Gene Expression is a REGULATED process!
7
Multiple Choice
How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?
The two different cells become mutated
The proteins expressed in each cell are different
They actually have different DNA in the two types of cells.
The genome of the different cells changes
8
Multiple Choice
9
Multiple Choice
10
Environmentalfactors, in this case temperature, is turning "on" or "off" of certin genes that code for fur color.
Himalayan Rabbit
11
Multiple Choice
Why does the fox change color at different times of year?
The alleles for fur color change as the fox grows older.
The color is affected by the latitude of the animal.
The color of the foxes are determined at birth.
The genes that determine color is affected by temperature.
12
Multiple Choice
Gene Expression is
The mutation of DNA to create specialized cells
The turning on and off of genes by environmental factors
The transforming of stem cells into specialized cells
All of these
Cell Differentiation & Cell Specialization
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