ACTIVITY 1: Monohybrid cross in corn In corn the allele for purple seed (P) is dominant and the allele for yellow seed (p) is recessive. What is the genotype for true-breeding purple corn? true-breeding yellow corn? If true-breeding (homozygous) purple corn is crossed with true- breeding yellow corn, Use the Punnett square below to predict the results of the F1 offspring (male gametes on top, female on left): What is the phenotype of the F,?_ What is the genotype of the F,? Use the Punnett square below to predict the results of the F, (male gametes on top, female on left) Probability Genotype Phenotype

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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ACTIVITY 1: Monohybrid cross in corn
In corn the allele for purple seed (P) is dominant and the allele
for yellow seed (p) is recessive.
What is the genotype for true-breeding purple corn?
true-breeding yellow corn?
If true-breeding (homozygous) purple corm is crossed with true-
breeding yellow corn,
Use the Punnett square below to predict the results of the F1
offspring (male gametes on top, female on left):
What is the phenotype of the F,?
What is the genotype of the F,?
Use the Punnett square below to predict the results of the F,
(male gametes on top, female on left)
Probability
Genotype
Phenotype
Transcribed Image Text:ACTIVITY 1: Monohybrid cross in corn In corn the allele for purple seed (P) is dominant and the allele for yellow seed (p) is recessive. What is the genotype for true-breeding purple corn? true-breeding yellow corn? If true-breeding (homozygous) purple corm is crossed with true- breeding yellow corn, Use the Punnett square below to predict the results of the F1 offspring (male gametes on top, female on left): What is the phenotype of the F,? What is the genotype of the F,? Use the Punnett square below to predict the results of the F, (male gametes on top, female on left) Probability Genotype Phenotype
ACTIVITY 2: Human genetics
We will examine some human phenotypes that are controlled by
a single gene. For each characteristic, you will determine your
phenotype, possible genotype(s), and the frequency of your
phenotype in the class.
A. Tongue-rolling: a single gene with two alleles, R and
r, determines a person's ability to roll their tongue into
a U shape. A person that cannot roll their tongue is
homozygous recessive (rr).
What is your phenotype?
What is your genotype(s)?
What is the frequency of your phenotype? (show your
work)
B. Widow's peak: a single gene with two alleles, W and
w. The dominant allele (W) results in a hairline that
forms a distinct point in the center of the forehead.
What is your phenotype?
What is your genotype(s)?
What is the frequency of your phenotype? (show your
work)
Transcribed Image Text:ACTIVITY 2: Human genetics We will examine some human phenotypes that are controlled by a single gene. For each characteristic, you will determine your phenotype, possible genotype(s), and the frequency of your phenotype in the class. A. Tongue-rolling: a single gene with two alleles, R and r, determines a person's ability to roll their tongue into a U shape. A person that cannot roll their tongue is homozygous recessive (rr). What is your phenotype? What is your genotype(s)? What is the frequency of your phenotype? (show your work) B. Widow's peak: a single gene with two alleles, W and w. The dominant allele (W) results in a hairline that forms a distinct point in the center of the forehead. What is your phenotype? What is your genotype(s)? What is the frequency of your phenotype? (show your work)
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