Today, we start theGenetics material!We’re finished with cells.

Enjoy your long weekend!

Period 3:Anthony, go to the While You Were Gone folder.

Today, we start theGenetics material!We’re finished with cells.

Enjoy your long weekend!

Period 4:

Today, we start theGenetics material!We’re finished with cells.

Enjoy your long weekend!

Period 6:

Today, we start theGenetics material!We’re finished with cells.

Enjoy your long weekend!

Period 7:

CalendarFri., 8/29 Topic: Types of genes

Homework:Finish pg. 32 (if not complete)

Get out•Calendar (yellow planner)

•Pencil •Comp book•Colors•G/T/S (sticky item)

To Do1.Glue today’s handout to pg. 33.2.Look back at pg. 31. What did Mendel figure out?

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…

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Parents

F1

F2

So, what does it mean?

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GeneA section of a chromosome

Your genes are in pairs.

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Allele1 part of the gene pair (1 allele from Mom + 1 allele from Dad = 1 gene pair)

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The stronger allele, which results in the dominant trait

Dominant

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The weaker allele, which only results in the recessive trait when there is a pair of recessive alleles

Recessive

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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

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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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