Transcript Aim: What factors affect the expression of the gene?

BELL WORK: Copy and
answer the question below:
What is more serious
a point or a
frameshift mutation?
Why?
Test Thursday!
Codon Face Assignment
Due Thursday 10/29
Sub Tomorrow
You will work on an assignment that will help you get
ready for our test
This assignment must be completed
and turned in AT THE END OF THE
PERIOD TOMORROW.
I Will not accept them late under any
circumstances
Quiz passed back
Answers
1) B
2) C
3) A
4) D
5) A
6) B
7) C
8) D
9) B
10) C
Cornell Notes
Title: Differentiation
Date: 10/27
Page: 44
Standard: Identify and Ilustrate changes in
DNA and evaluate the significance of these
changes
EQ: How do cells become different from one
another?
Who can read this sentence?
Tsh edo gat eth efa tca t
Tse dog ate the fat cat
Mutation
Point (substitution)
• Remember read each codon as a group of 3
SUBSTITUTE s for h
The dog ate the fat cat
Tse dog ate the fat cat
Mutation
Frameshift
Insert S in between the T and h
The dog ate the fat cat
Tsh edo gat eth efa tca t
Mutations
Original: The dog ate the fat cat
Silent: The dog ate the fat cat
Missense: Tse dog ate the fat cat
Nonsense: Th
Insertion: Tsh edo gat eth efa tca t
Deletion: Ted oga tet hef atc at
What are stem cells?
Ted Talk
How do stem cells work?
Stem Cell research
DIFFERENTIATION: becoming
specialized; changing to serve a
specific purpose/function
So does a heart cell have the
same DNA as an eye cell??
YES
Well How Are they Different?
They Express different genes!
When stem cells become
specialized cells, that means they
are expressing different genes.
***Bone cells, muscle cells, skin
cells, brain cells, etc. are different
because they express (show)
different parts of the DNA
instruction code (Genes).***
But what factors can affect gene
expression?
In other words, what can make cells express
different genes?
Temperature
Available Water
Leaves above the water are broad, but below the water are finely
divided.
pH (acidity)
Acidic soil produces blue flowers and Alkaline soil
produces pink.
For the rest of today…
• Read the “To Transcribe or Translate?
That is the Question…” information at your
table.
• Use the provided scenarios to answer the
remaining questions on your handout.