1. DO NOW
Date:
10/2
Put homework away.
In your own words:
Describe why two brown-haired parents can have a blonde-haired child.
Use complete sentences.

2. ESSENTIAL QUESTION:
How are traits passed from parents to offspring (children)?
OBJECTIVES:
-Trait Bracelets
-Vocabulary T-Charts

3. DNA and Chromosomes

4. Chromosome Bracelets Create a Chromosome with two pipe cleaners
Select beads that represent your traits and put them on your bracelet
HAIR COLOR: Black/Brown:1 Blue, 1 Green Blonde: 2 green
HAIR TEXTURE: Curly Hair:1 Red,1 Orange Straight : 2 Orange

5. Vocabulary T-Charts USE YOUR PGS 218-219 OR GLOSSARY TO FILL IN THE
TEXTBOOKS
PGS
OR GLOSSARY
TO FILL IN THE
INFORMATION

6. EXIT TICKET
Refer to your bracelet, and answer the following questions:
Is your genotype for hair color heterozygous or homozygous?  
Which allele is dominant and which is recessive?  
How do you know?

7. DO NOW What is the difference between dominant and recessive genes?
Date:
10/3
What is the difference between dominant and recessive genes?
Use textbooks or notes.

8. Brainpop

9. Word Wall Vocabulary Make a poster of your assigned Vocabulary term
Your poster must include a title, picture, and the definition in your own words on the back
Poster must be colored neatly

10. Kahoot

11. EXIT TICKET page 38
Refer to your bracelet, and answer the following questions:
Is your genotype for hair color heterozygous or homozygous?  
Which allele is dominant and which is recessive?  
How do you know?

12. Do Now /3 & 10/4
What is the difference between heterozygous and homozygous?

13. ESSENTIAL QUESTION:
How are traits passed from parents to offspring (children)?
OBJECTIVES:
--Genotype/Phenotype Activity
-Dragon Fly Genetics

14. Observing Traits pg Glue this chart on page 51 in your notebooks Trait
Your phenotype
Your Genotype
Hair Color
Tongue Rolling
Eye color
Hair texture
Hairline
Type of earlobe
Shape of little finger
Shape of nose

15. Observing Traits
Use the pictures on the sheets at your table to fill in your phenotypes and genotypes.

16. One Sentence Summary pg 33
Read each paragraph and record a one sentence summary under your trait chart.
Genes are ___________________________
Dominant genes ______________________
Recessive genes _______________________.

17. Traits Practice pg
Copy these parent alleles on the top of page 50 of your notebook no

18. Traits Practice
Answer the following questions on page 40 of your notebook in complete sentences.
1.Which parent gave the brown hair allele for hair color?
2. What is the phenotype of the offspring’s hair color?
3. What is the phenotype of the offspring’s hairline on their forehead?
4. Will the offspring be able to roll his/her tongue? How do you know?

19. What does the baby dragonfly look like?
Dragonfly Genetics
Male Alleles
What is the code?
(ee)
What does the baby dragonfly look like?
What does it look like?
(white eyes)
Female Alleles

20. DO NOW How are the genotype and phenotype of an organism related?
Date:
10/5
Q: How are traits passed from parents to offspring (children)?
How are the genotype and phenotype of an organism related?

21. ESSENTIAL QUESTION:
How are traits passed from parents to offspring (children)?
OBJECTIVES:
-Brainpop-Heredity
-Punnett Square Activity
-Exit Ticket

22. Brainpop
Heredity

23. Punnett Squares
Punnett Square – a chart used to show four possible ways that genes can be combined when passed from parents to offspring as a result of reproduction.
Father’s genotype – on side of square
Mother’s genotype – on top of square
Mother’s Genotype
Allele 1
Allele 2
Father’s Genotype
Offspring Possibility #1
Offspring Possibility #2
Offspring Possibility #3
Offspring Possibility #4
Allele 1
Allele 2

24. Important to know before getting started:
Female
Male

25. Punnett’s Square
Scientists use a Punnett’s square to determine the possible genetic outcomes for the offspring that result from the combination of the parent’s genes.

26. Black colored fur is the dominant trait.
We will use the Punnett’s Square to determine the offspring of guinea pigs. The offspring will either be black or white. bb BB
Black colored fur is the dominant trait.

27. Generation 1 B B b b
In this case we have a dad with black fur and a mother with white fur. Because black is the dominant gene, we write it with a capital ‘B’.

28. Generation 1 B B b b
White fur is a recessive trait. It is written with a lowercase ‘b’. It does not matter what letter we choose to represent a gene, but capital letter is always dominant and lowercase is always recessive.

29. Generation 1 B B Bb b b
To complete the Punnett’s square we combine the gene from mom with the gene from dad. We always write the dominant gene first.

30. Generation 1 B B Bb b b
We write the dominant gene first because it “masks” the recessive gene. Therefore, the color of the guinea pig with the genes Bb would be black.

31. Generation 1 B B Bb b b
Copy this Punnett’s square into your notebook. Try and fill out the remaining offspring on your own. When you are done, go to the next slide.

32. Generation 1 B B Bb Bb b Bb Bb b
We say an individual is heterozygous when it has two different genes.
What percentage of these offspring are heterozygous?

33. 100% are heterozygous black.
Generation 1 B B Bb Bb b Bb Bb b
100% are heterozygous black.
We will now take one female and one male from this generation to cross for our second generation.

34. Here are two of the offspring in our first generation.Bb Bb
If these two were to mate, what would be the traits of their offspring?

35. What will the gene combinations be for these offspring?
Generation 2 B b B b
What will the gene combinations be for these offspring?
Copy this into your notebook and try to fill out the Punnett’s square. Continue when you are done.

36. Generation 2 B b BB Bb B bb Bb b
We have completed is the genotype for all the offspring. Genotype refers to the gene combination that an individual has. Can you figure out what the phenotype of these offspring will be?

37. Generation 2 B b BB Bb B bb Bb b black black black white
What you have just determined is called the phenotype. The phenotype is what we see as a result of an individual's genes.

38. Generation 2 B b BB Bb B bb Bb b
We say an individual is homozygous when it has two of the same genes.
Can you find a homozygous black guinea pig?

39. Generation 2 B b BB Bb B bb Bb b This individual is homozygous black.
The entire Punnett’s square represents all possible outcomes. That means each small box represents 25% of the offspring.
What percentage of the offspring are homozygous black?

40. Generation 2 B b BB Bb B bb Bb b
25% of the offspring are homozygous black.
Try the next two on your own:
____% are homozygous white
____% are heterozygous black

41. Generation 2 B b BB Bb B bb Bb b
Notice: This will always add up to 100%.
25% are homozygous black.
25% are homozygous white
50% are heterozygous black

42. Now we will examine some human traits.
Earlobes can be either unattached (A) or attached (a)
Unattached A
Attached a
The unattached earlobe is the dominant trait.
The attached earlobe is the recessive trait.

43. What percent of offspring will have attached earlobes?
Copy this Punnett’s square into your notebook. Determine both the genotype and phenotype.
What percent of offspring will have attached earlobes?

44. 50% percent of offspring will have attached earlobes.Ee Ee ee ee e
50% percent of offspring will have attached earlobes.

45. The ability to curl your tongue is also genetic.
Tongue curling is the dominant trait.
Non-curling is the recessive trait.

46. Tongue Curling T t T T
Copy into your notebook and complete the Punnett’s Square.
What percentage of offspring will be able to curl their tongue?

47. 100% percent of offspring will be able to curl their tongues.
Tongue Curling T t T TT Tt TT Tt T
100% percent of offspring will be able to curl their tongues.

48. Monster Genetic Lab
Determine the allele pair for each trait of the female monster by flipping a coin to determine dominant or recessive traits.
Repeat the process to determine the male monster’s traits
Create Punnett squares to determine the traits of their offspring

49. Punnett Square – example
Top left box = Mother’s first allele, Father’s first allele
Top right box = Mother’s second allele, Father’s first allele
Bottom left box = Mother’s first allele, Father’s second allele
Bottom right box = Mother’s second allele, Father’s second allele

50. Exit Ticket Create a concept map using the following words:
Cell phenotype
Nucleus genotype
Chromosomes allele
Genes
Passing of traits
Sections of DNA