Mutations and Gene Regulation
Presentation
•
Biology
•
9th - 12th Grade
•
Hard
Joseph Anderson
FREE Resource
8 Slides • 6 Questions
1
Gene Regulation
by Stacy King
2
DNA and Cell Function
DNA is in every cell
mRNA only copies DNA genes that are useful to the cell
cell function is dependent on the proteins produced
pancreas- insulin
blood cells- hemoglobin
3
Multiple Choice
Why are cells in the skeletal system sturdy, where as skin cells are soft and stretchy?
due to the specific proteins that are synthesized (made) by specific cells
due to DNA
due to underlying mutations and specifications of the DNA
4
DNA Regulation
Transcription factors
on and off switch for mRNA
5
Transcription Factors
Respond to the environment
melanocytes
6
Multiple Choice
What functions as the on off switch for mRNA transcription
transcription factors
translation factors
transgenic factors
transportation factors
7
Types of Mutations
Substitution
a single nucleotides base is changed
8
Types of Mutations
Insertion
The addition of a nucleotide
9
Types of Mutations
Deletions
deleting a nucleotide
10
Multiple Choice
DNA molecule segment is : TTACGCAAG The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
Substitution
Deletion
Insertion
Inversion
11
Multiple Choice
What mutation has occurred here? T-G-A-C-C-A T-G-A-G-C-A
Substitution
Deletion
Insertion
Frameshift
12
Mutations
Neutral
Positive
better adapted
Negative
less adapted
13
Multiple Choice
A change in the sequence GAG to GGG would
change the amino acid from Leu to Pro
changes the amino acid from Leu to Phe
change the amino acid from Leu to STOP
does not change the amino acid
14
Multiple Choice
Normal- AGA-TTC-ATA-GCG Mutant- AGA-TTC-AAT-AGC-G
deletion frameshift
insertion frameshift
substitution
nonsense
Gene Regulation
by Stacy King
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