polydactylous is a autosomal dominant disorder = Aa or AA
Cystic fibrosis is autosomal recessive disorder = bb
Mother AaBb (polydactylous women) X aaBb (Normal man)
A. Genotype of mother - AaBb
aB | ab | |
AB | AaBB | AaBb |
Ab | AaBb | Aabb |
aB | aaBB | aaBb |
ab | aaBb | aabb |
B. Genotype child 3 = aabb
C. Genotype child 4 = Aabb
D. 2/8 = 1/4 (aaBb)
31. A polydactylous woman, otherwise normal, marries a healthy normal man. Their four children have the...
1 A) Cross Rh- man who is heterozygous for cystic fibrosis with a female who is heterozygous for cystic fibrosis and Rh+. What are the phenotypes and phenotypic ratios of the offspring? B) Cross a Rh- man who is left handed with a female who is heterozygous Rh+ and right handed. What are the expected phenotypes? C) The parents of two children are normal in respect to cystic fibrosis. One of their children is normal, one has cystic fibrosis. What...
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...
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A woman marries a man with two rare, recessive X-linked alleles, a and b. Their daughter marries a normal man. What will the phenotypes of their female children be?
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A woman who is heterozygous for normal vision marries a man with normal vision. If they have a girl, what is the probability she is colorblind? And what if it is a boy?
1. How many different types of gametes are made by a parent of genotype Bb? 2. A right-handed (R) man and a left-handed (t) woman have two children, one right handed and one left-handed. What are the genotypes of all four family members? 3. A woman with freckles (F) has two children, one with freckles, and one without. What are the possible genotype(s) of the father? 4. A man who is heterozygous for eye color (Bb) marries a woman who...
An albino, wet earwax woman marries a normal pigmented, dry earwax man. Their first child is an albino with dry earwax. Their second child has normal pigmentation with wet earwax. What are the genotypes of all four people?
THIS ASSIGNMENT IS DUE IN YOUR LAB SECTION 1. A color-blind man marries a woman with normal color vision. The woman's father was also color-blind. a.) What is the chance that their first child will be a colorblind son? A colorblind daughter? b.) If they have four children, what is the chance that two will be colorblind sons? 2、 The Brown's are both carriers of the recessive allele that causes the metabolic disorder called phenylketonuria. The gene responsible for the...
the two cream colored guinea pigs produced, in one case, 22 yellow. 47cream, and 19 white. What type of inheritance is this? II. Sex-linked Characteristics 12. In man, colorblindness, an inability to distinguish between red and green, is inherited as a sex-linked character on the X chromosome. It is recessive. If a colorblind man marries a homozygous normal woman what chance is there for the children of being colorblind? If a normal man marries a colorblind woman. where will colorblindness...