17. Suppose that, in humans, ability to roll the tongue (R) is dominant to being unable...
The ability to roll one’s tongue(R) is dominant over non-rolling (r). The ability to taste PTC (T) is dominant over non-taster (t). Suppose a woman who is both homozygous tongue-roller and a non-taster marries a man who is heterozygous tongue-roller and is a PTC- taster, and have three children: a homozygous tongue-roller who is also a PTC- taster, a heterozygous tongue-roller who is also a taster, and a heterozygous tongue-roller who is a non-taster. a.If these parents would have a...
2) The ability to curl your tongue up on the sides (T, tongue rolling) is dominant to not being able to roll your tongue. A woman who can roll her tongue marries a man who cannot. Their first child has his father's phenotype. What are the genotypes of the mother, father, and child? What is the probability that a second child won't be a tongue roller?
8. Dihybrid Genetics: In humans, Brown hair (R) is dominant while red hair (r) is recessive. Freckles (6) is dominant while no freckles (f) is recessive. % Harry Potter is homozygous dominant for freckles and heterozygous for red hair. What is his genotype? What is his phenotype? What gametes could he produce? Ginny Weasley is heterozygous for freckles and has red hair. What is her genotype? What is her phenotype? What gametes could she produce? What is the chance that...
answer all questions to get a thumbs up 4. A woman has a Widow's peak (dominant), but she does not know her genotype. She marries a man who has a straight hairline and they have 13 children. Nine have widow's peaks and four have straight hairlines a. What are the genotypes of the parents? b. What are the genotypes of the children? C. Explain how you arrived at your answers. G host 5. In humans, Phenylketonuria (PKU) and Lactose intolerance...
6. In humans, having a widow’s peak (W) is dominant to not having a widow’s peak (w). Sally has a widow’s peak. If Sally has a son who does not have a widow’s peak, what genotype can the father NOT be? 7. The ability to roll the tongue inward in humans is determined by the dominant gene T. From a couple both able to roll the tongue, a child is born. The child is unable to roll the tongue. What...
2. In humans, the allele for freckles (F) is dominant and the allele for no freckles (1) is recessive. Assume that a homozygous recessive man and a heterozygous woman have a child. a. What is the woman's phenotype? 0.5 point b. Show the Punnett square for the cross. 1 point c. What is the child's probability of having freckles? 0.5 point
In humans, free earlobes (E) are dominant to attached earlobes (e) and the presence of freckles (F) is dominant to the absence of freckles (f). If two individual heterozygous for both of these traits were to mate, what is the probability of having a child with attached earlobes and NO freckles? a. 34.9% b. 100% c. 6.25% d. 16.4%
Lets let R represents tongue-rolling, r represent a non -roller, T represent ability to taste PTC, and t represent non tasting. Suppose a women who is both a heterozygous tongue roller and a non PTC taster marries a man who is a heterozygous tongue roller and is a homozygous PTC taster. What will their children's phenotypes ratio be?
The ability to taste the chemical phenylthiocarbamide (PTC) results from a dominant allele (T) and not being able to taste PTC is the result of having two recessive alleles (t). The ability to roll one's tongue is the result of a dominant allele on a second gene (R). Consider that two parents who are both taster, rollers have a child that is a non-taster, non-roller. What is the probability that their next child will have the same phenotype as the...
Can you curl your tongue up on the sides? Tongue-curling in humans is a dominant genetic trait. Suppose a man who is Tt for tongue-curling marries a woman who is also Tt for this trait. What are the possible genotypes and phenotypes of their children and the percent chance for each? GENOTYPE. PHENOTYPE. CHANCE TT. TONGUE-curler. 25% Tt. Carrier (could possible). 50% tt. Will not be able 25% Am I on the right track?