Trait A For Heliodors, having four arm-like extensions is dominant over having two. In a family of Heliodors, Hayden has four arm-like extensions like his mother Helen. His father, Harry, and sister, Holly both have two. What are the genotypes of everyone in this family of Heliodors? What is Helen's genotype? Not enough information to determine aa (homozygous recessive) Aa (heterozygous) AA (homozygous dominant)
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- Elizabeth is married to John, and they have four children. Elizabeth has a straight nose "n" (recessive) and dimples “D"(dominant). John has also dimples, but he has a convex nose “N"(dominant). Of their four children, Ellen is just like her father, and Dan is just like his mother. The other children-Anne, who has a convex nose, and Peter, who has a straight nose have no dimples "d”. Answer the following questions about this family: •What are the genotypes of Elizabeth and John? •Using a Punnett square determine possible genotypes of children. •Elizabeth's father was a straght-nosed/ dimples, while her mother was a convex-nosed/ dimples. What can you figure out about their genotypes? •John's father was a straight-nosed dimples, while his mother was convex- nosed/dimples. What can you determine about their genotypes?fill the blanks. In humans, having freckles is dominant to not having freckles. What are the possible genotypes with someone with freckles? [blank1], [blank2]In humans, unattached earlobes (E) are dominant to attached earlobes (e). If a child is born with unattached earlobes, and a mother with attached earlobes, and a dad with unattached earlobes, what is genotype of the dad? O a. EE or Ee O b. ee O c. Ee O d. Ee or ee O e. EE
- 1) Suppose thatt everyone in your family (bloodline) has attached earlobes. Do you know with certainty what your gentype is? a) Your spouse also has attached earlobes, but both your children have unattached earlobes. What is your genotype, and what is your spouse's genotype?Piebald spotting is a condition found in humans inwhich there are patches of skin that lack pigmentation. The condition results from the inability ofpigment-producing cells to migrate properly duringdevelopment. Two adults with piebald spotting haveone child who has this trait and a second child withnormal skin pigmentation.a. Is the piebald spotting trait dominant or recessive?What information led you to this answer?b. What are the genotypes of the parents?Give correct typing answer with explanation and conclusion 1. which of the following is correct about dominant genes? Dominant genes are the weakest but take charge of physical appearance Dominant genes are the strongest but take no charge of physical appearance. Dominant genes are the strongest and take charge of physical appearance. Dominant genes have no effect on physical appearance.
- In humans, a dimple in the chin is a dominant characteristic controlled by a single gene. A man who does not have a chin dimple has children with a woman with a chin dimple whose mother lacked the dimple. What proportion of their children would be expected to have a chin dimple? A man with a chin dimple and a woman who lacks the dimple produce a child who lacks a dimple. What is the man’s genotype? A man with a chin dimple and a non-dimpled woman produce eight children, all having the chin dimple. Can you be certain of the man’s genotype? Why or why not? What genotype is more likely, and why?Cystic fibrosis is an autosomal disease that mainly affects the white population, and 1 in 20 whites are heterozygotes. Genetic testing can diagnose heterozygotes. Should a genetic screening program for cystic fibrosis be instituted? Should the federal government fund it? Should the program be voluntary or mandatory, and why?Why do unrelated children with a disorder such as Down syndrome resemble each other more closely than they do their siblings?
- Joan was born with six toes on each foot, a dominant trait called polydactyly. Two of her five siblings and her mother, but not her father, also has extra digits. What is Joan's genotype for the number-of-digits character?Imagine that you are a doctor in a maternity ward. During your last shift, 20 babies were born. 10 had blue eyes, and 10 had brown eyes. Remember genotypes are the two alleles given for each trait, written with a letter. For this activity B =brown eyes b= blue eyes. Phenotypes are the physical appearance of the trait. Considering the possible genotypes you listed in question 3, what traits would the parents of brown-eyed and blue-eyed children have to have?I humans, pointed eyebrows are dominant over smooth eyebrows. Mary's father has pointed eyebrows, but she and her mother have smooth. What is the genotype of the father?