#3 list each trait you thought the potato head child would have: eye color ear color: nose color:...
DESCRIPTION
Gym Sock GeneticsTRANSCRIPT
#3 – List EACH trait you thought the Potato Head
child would have: Eye Color Ear Color: Nose Color: Lip Color: Skin Color:
What does all this mean???
Gym Sock Genetics
Gym Sock Genetics
1.How many socks are given to a child by a parent?
One from each parent
Gym Sock Genetics
Dominant Trait:• Appears if one or both
parents passes it.• Written as a CAPITAL
letter/allele
Gym Sock Genetics
3. What color represents the dominant trait?
Red represents the dominant trait. (R)
Gym Sock Genetics
Recessive Trait:• Appears ONLY when
both parents pass it.• Written as a lowercase
letter/allele
Gym Sock Genetics
4. What color represents the recessive trait?
White represents the recessive trait. (r)
Gym Sock Genetics
Genotype:TWO inherited alleles/letters (different forms of the gene)
Gym Sock Genetics
5. What genotypes make red?
RR and Rr
Gym Sock Genetics
6. What genotypes make white?
rr
Genotypes always come in pairs
Why????Inherit from one allele
from EACH parent
Gym Sock Genetics
Heterozygous (hybrid):
Different alleles (Rr) for a particular trait.
Gym Sock Genetics
Homozygous (purebred):
Same alleles (RR and rr) for a particular trait.
Gym Sock Genetics
7. List the genotype of a heterozygous individual.
Rr(different alleles = capital letter and lowercase letter)
Gym Sock Genetics
8. List the two possible genotypes of a homozygous individual.
RR and rr (same alleles = two capital letters or two lowercase
letters)
Gym Sock Genetics
9. Which of the above genotypes is the homozygous dominant?
RR
Gym Sock Genetics
10. Which of the above genotypes is the homozygous recessive?
rr
Phenotype:• An organism’s
appearance• What you see
Gym Sock Genetics
CFU….What determines the
phenotype??(HINT: Think of 2
letters!!!)
A GENOTYPE
Gym Sock Genetics
11. What is the phenotype of the homozygous dominant genotype?
Red (RR)
Gym Sock Genetics
12. What is the phenotype of the homozygous recessive genotype?
White (rr)
Gym Sock Genetics
13. What is the phenotype of the heterozygous one?
Red(Rr)
Gym Sock Genetics14. What does the sock represent in our model?
Genes Alleles
Gym Sock Genetics
15. What do the two different colors of socks represent?Different alleles
What does all this mean???
Review Questions1. phenotype; genotype2. alleles3. traits or characteristics4. the dominant trait5. Each plant had two alleles for
each characteristic, and each parent gives one allele to the offspring which may be dominant or recessive.