Transcript Today, we start the Genetics material!

Period 3:
Anthony, go to the
While You Were
Gone folder.
Enjoy your
long weekend!
Today, we start the
Genetics material!
We’re finished with
cells.
Period 4:
Enjoy your
long weekend!
Today, we start the
Genetics material!
We’re finished with
cells.
Period 6:
Enjoy your
long weekend!
Today, we start the
Genetics material!
We’re finished with
cells.
Period 7:
Enjoy your
long weekend!
Today, we start the
Genetics material!
We’re finished with
cells.
Calendar
Fri., 8/29
Topic: Types of genes
Homework:
Finish pg. 32 (if not
complete)
To Do
1. Glue today’s handout to
pg. 33.
2. Look back at pg. 31.
What did Mendel figure
out?
Get out
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Calendar (yellow planner)
Pencil
Comp book
Colors
G/T/S (sticky item)
Have you…
Looked at your Portal?
We have 4 grades in the
gradebook. Progress
reports go out 9/8 at the
latest.
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What can you tell me about…?
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What can you tell me about…?
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What can you tell me about…?
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What can you tell me about…?
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Yesterday…
Parents
F1
F2
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So, what does it mean?
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Gene
A section of a chromosome
Your genes are in pairs.
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Allele
1 part of the gene pair (1 allele from
Mom + 1 allele from Dad = 1 gene pair)
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Dominant
The stronger allele, which results in the
dominant trait
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Recessive
The weaker allele, which only results in
the recessive trait when there is a pair
of recessive alleles
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Scientists show dominant and
recessive alleles, using letters.
B = dominant
b = recessive
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Pairs of letters are called
genotypes.
These are the 3 main genotypes:
BB
Bb
bb
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The dominant allele for ___ gives you ___.
• Hair color = dark hair (brown or black)
• Eye color = dark eyes (brown or black)
• And lots more!
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The recessive allele for ___ gives you ___.
• Hair color = light hair (red or blond)
• Eye color = light eyes (blue or green)
• And lots more!
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In Mendel’s Experiment
Dominant: green peas, purple flowers,
smooth pods, tall plants
The dominant alleles covered up the other
parent’s recessive alleles.
That’s why the F1 generation only had green
peas, purple flowers, smooth pods, and tall
plants!
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Design 2 t-shirts (pg. 32)
• Design a t-shirt for dominant & a t-shirt for
recessive.
• Decorate the shirt with a slogan, a picture,
or both. Must use color.
• Below each shirt, explain why the design
shows what you know about dominant and
recessive alleles (2 sentences each).
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