oct. 17 th 2011

Oct. 17th 2011

Welcome 7th Graders

38. “Can You Roll Your Tongue” , 10/10/1139. Vocabulary T-Charts, 40.Fornicating Fruit Flies, 10/13/12

a. Notes on sexual and asexual reproduction (GL only)

b. Conclusion paragraph41. Genetics Concept Map42. Self-Reflection, “What I know well, what I need help with.” 10/14/11 or 10/17/11

Update your table of contents:

Mrs. Fillpot

Rm. 504

Oct. 17th 2011

Today’s ScheduleMrs.

FillpotRm. 504

1. Do-Now

2. Activity: Dragonfly Genetics

3. Review genetics vocabulary

4. Assessment: Exit Slip

Homework: test review sheet, due Friday.

Genetics Unit Test on Friday

Dark Matter

Essential Questions

What creates diversity among offspring?

How are the structures in genetics related?

Announcements:Sally Ride Festival for Girls in Math and Science: Field Trip to Rice University, Saturday, October 22nd

Leave O. Henry at 7:30 AMReturn at 6:30 PMSign up in hall.

Oct. 17th 2011

Objectives:Mrs.

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1. Recognize that inherited traits of individuals are governed in the genetic material found in the genes within chromosomes in the nucleus.

2. compare the results of uniform or diverse offspring from sexual reproduction or asexual reproduction.

Oct. 17th

2011Self-Reflection

Review your notes and assignments from the week.

Write down 3 things you have learned about genetics and at least 3 things you still need help with.

Self-Reflection Assignment 41

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What I know well… What I still want help with…

4 minutes

Oct. 17th 2011

Review Questions:Mrs.

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How do we represent a dominant form of a trait?

Oct. 17th 2011

Review Questions:Mrs.

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How do we represent a recessive form of a trait?

Oct. 17th 2011

Review Questions:Mrs.

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What is the difference between genotype and phenotype?

Oct. 17th 2011

Review Questions:Mrs.

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What do we mean by the words homozygous and

heterozygous?

Oct. 17th 2011

Review Questions:Mrs.

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How are genotype and phenotype related?

Oct. 17th 2011

Review Questions:Mrs.

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Marissa said that the dragonfly with the genotype Ss would have a medium length abdomen.

What mistake did she make?

Oct. 17th 2011

Activity: Dragonfly Genetics, Assignment 42Mrs.

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Procedure:

Analyze each chromosome, match it with its partner to determine the genotype for each trait.

Use the genotypes to determine the phenotypes.

You and your partner will use the data you collect to determine which dragonfly belongs with each set of chromosomes.

Oct. 17th 2011

Activity: Dragonfly Genetics, Trait Key Mrs.

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Allele Form of Trait Allele Form of Trait

E Red eyes S Short abdomen

e White eyes s Long abdomen

B Blue body color H Long hairs on legs

b Green body color h No hair on legs

L Long legs W Flat wings

l Short legs w Upright wings

T Large thorax

t Small thorax

Oct. 17th

2011Do Now: Genetics Vocabulary, Assignment 44

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Use your knowledge of genetics vocabulary to unscramble the words that correctly complete the sentence.

Oct. 17th 2011

Finish Activity: Dragonfly Genetics, Trait Key Mrs.

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Allele Form of Trait Allele Form of Trait

E Red eyes S Short abdomen

e White eyes s Long abdomen

B Blue body color H Long hairs on legs

b Green body color h No hair on legs

L Long legs W Flat wings

l Short legs w Upright wings

T Large thorax

t Small thorax

Oct. 17th

2011Conclusion Questions for Dragonfly Genetics

Conclusion questions for Dragonfly 10/17/11Genetics,

1. For which genes is baby 1 homozygous recessive?

2. For which genes is baby 2 heterozygous?3. For which genes is baby 3 homozygous

recessive?4. Is it possible for two organisms to have the

same phenotype but different genotypes? Explain using examples from the lab.

5. Dragonfly 1 mates with Dragonfly 2, predict the genotypes and phenotypes of the offspring for the hair trait. Be specific and explain how you arrived at your answer.

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Oct. 17th

2011Dragonfly Genetics

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Which dragonfly is this? How do you know?

Oct. 17th

2011Dragonfly Genetics

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Baby 2

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2011Dragonfly Genetics

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Baby 2 Baby 1

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2011Dragonfly Genetics

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Baby 2 Baby 1 Baby 3

Oct. 17th

2011Dry Erase Review

Expectations:

Work with your shoulder partner.

Use a level 0.5 voice

Only write the answer on the dry erase board.

Answer quickly.

You may use your notes to help you.

Do not show your answers to the other team.

Rotate who scribe each time.

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2011Dry Erase Review

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The picture above shows a planarian. When you cut it into three pieces it grows into 3 planaria. 1. Describe the type of reproduction shown above. 2. How do you know?

Oct. 17th

2011Dry Erase Review

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The picture above shows a planarian. When you cut it into three pieces it grows into 3 planaria. 1. Describe the type of reproduction shown above.

Asexual reproduction 2. How do you know?

Only one parent

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2011Dry Erase Review

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Your science class is investigating the trait for body color in planarians in science class. The dominant allele, brown body color is shown by writing, B. The recessive allele, tan, is shown by writing, b.

Planarian 1 is the parent, predict the genotypes of the three offspring.

1. BB 2. __ __

3. __ __

4. __ __

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2011Dry Erase Review

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Your science class is investigating the trait for body color in planarians in science class. The dominant allele, brown body color is shown by writing, B. The recessive allele, tan, is shown by writing, b.

Planarian 1 is the parent, predict the genotypes of the three offspring.All BB, the genotypes are identical to the parent in asexual reproduction.

1. BB 2. __ __

3. __ __

4. __ __

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2011Dry Erase Review

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Which cell part contains the genetic material? What is it called?

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Which cell part contains the genetic material? Y What is it called? Nucleus

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What word describes the mother’s genotype for hair color?

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

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2011Dry Erase Review

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What word describes the mother’s genotype for hair color?heterozygous

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

Oct. 17th

2011Dry Erase Review

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What word describes the father’s genotype for hair color?

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

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2011Dry Erase Review

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What word describes the father’s genotype for hair color?Homozygous Dominant

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

Oct. 17th

2011Dry Erase Review

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What word describes the mother’s genotype for ear lobes?

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

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2011Dry Erase Review

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What word describes the mother’s genotype for ear lobes?Homozygous recessive

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

Oct. 17th

2011Dry Erase Review

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What is the mother’s phenotype for ear lobes?

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

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2011Dry Erase Review

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What is the mother’s phenotype for ear lobes?unattached

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

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2011Dry Erase Review

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Yesennia says the phenotype is light brown, because the genotype is Bb. Is she right? Why?

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

Oct. 17th

2011Dry Erase Review

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Yesennia says the phenotype is light brown, because the genotype is Bb. Is she right? Why?Should be brown, the dominant allele masks the recessive allele

Trait Hair color Tongue Rolling

Ear Lobe

Father BB Rr EeMother Bb rr eeKey:Hair Color= (B) Brown, (b) blondeTongue Rolling= (R) Tongue Roller, (r) non-rollerEar Lobe= (E) attached earlobe, (e) unattached

Oct. 17th

2011Dry Erase Review

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A

B

C

D

E

The name of A.

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A

B

C

D

E

The name of A.

Nucleus

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A

B

C

D

E

What is found in A?(Give it 3 different names.)

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A

B

C

D

E

What is found in A?(Give it 3 different names.)

DNAChromosomesGenesChromatinGenetic material

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A

B

C

D

E

Name picture B.

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A

B

C

D

E

Name picture B.

Cell

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A

B

C

D

E

What do we call C?

How is it formed?

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A

B

C

D

E

What do we call C?Chromosome

How is it formed? Twisted DNA

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A

B

C

D

E

Name E and D.

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A

B

C

D

E

Name E and D.

E-DNA

D-Gene

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DNA is made of 4 bases.

What are they?

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DNA is made of 4 bases.

What are they?AdenineThiamineCytosineguanine

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The offspring produced from sexual reproduction show more variety in their genotypes and phenotypes. Why?

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2011Dry Erase Review

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The offspring produced from sexual reproduction show more variety in their genotypes and phenotypes. Why?

In sexual reproduction, the offspring get one allele from each parent for each trait. There are many more possibilities for genotypes and therefore phenotypes.

In asexual reproduction the DNA is exactly like the parent. There is no variation in genotype or phenotype.