When Widow’s peak is dominant over straight hairline. What are the genotypic outcomes of a cross between an individual who is homozygous recessive and one who is heterozygous.
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- When Widow’s peak is dominant over straight hairline. What are the genotypic outcomes of a cross between an individual who is homozygous recessive and one who is heterozygous.
- Find if this is homozygous or homozygous recessive ratios of the offspring of the following cross.
Bbaa x bbAa
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- A woman homozygous dominant for albinism marries a man who is homozygous recessive for albinism. What are the possible genotypes and phenotypes percentages for their offspring?In a dihybrid cross of two bi-allelic Mendelian genes, A (two alleles – completely dominant A and recessive a), and B (two alleles – completely dominant B and recessive b), such that the parental generation comprises of pure-bred homozygotes (i.e. AABB with aabb), what are the expected genotype and phenotype ratios in the F1 and F2, if the F1 cross is (a) an intercross and if the F1 cross is (b) a testcrossIn addition to the allelic pair determining pattern baldness in man (B,b), consider early baldness to be due to another autosomal allele (E) on a different pair of chromosomes and also dominant in males but recessive in females. The phenotype for ee may be late or nonbaldness depending on sex and the genotype for B, b alleles. Two doubly heterozygous persons marry. What is the phenotype of the male parent? What is the phenotype of the female parent? Give the phenotypic ratio expected among male children of couples such as this one. Show corresponding genotypes for each phenotype mentioned in your phenotypic ratio. Give the phenotypic ratio expected among female children of couples such as this one. Show corresponding genotypes for each phenotype mentioned in your phenotypic ratio.
- In the following dihybrid cross: B/b; E/e x B/b; e/e What are the phenotypes of the offspring? 9/16 Black 3/16 brown 4/16 golden 9/16 Brown 3/16 Black 4/16 golden 9/16 Black 3/16 golden 4/16 brown 3/8 Black 1/8 brown 4/8 golden 3/8 golden 4/8 Black 1/8 brownWhat phenotypes in what ratio would be expected in the F2 generation of the cross with the following information: The genotype of homozygous black, long haired rabbit is BBhh The genotype of homozygous brown, short haired rabbit is bbHH The gamete of homozygous black, long haired rabbit is Bh The gamete of homozygous brown, short haired rabbit is bH F1 progeny is BbHh (heterozygous black, short haired rabbit)The pedigree below shows a family with a history of an autosomal recessive genetic disease with one individual's genotype indicated (G denotes the normal allele and g denotes the disease-causing allele). * O 0 O 1/8 1/4 O 1/16 Individual 1's father is known to be heterozygous (*) and his mother is known to be homozygous dominant. Other individuals in the pedigree may be carriers, but are not marked. The question mark (?) indicates that you do not yet know anything about this individual's phenotype with regard to the disease. Part 1 What is the probability that individuals 1 and 2 will have a child (5) who is a male with the disease (the child is unborn and the sex is not yet known)? O 1/4 1 O 1/6 5 1/8 2 01/12 gg 3 Part 2 What is the probability that the daughter (female)(6) that individual 3 and 4 just had will have the disease? 6
- A phenotypic ratio of 6:6:4 is possible between a male who is heterozygous free earlobes and heterozygous freckles, and a female who is homozygous free earlobes and heterozygous. The genotype of the female is written this way Eeff. Key: E = free earlobes e = attached earlobes F = freckles f = no freckles O If both statements are FALSE If both statements are TRUE O If the first statement is FALSE and the second statement is TRUE O If the first statement is TRUE and the second statement is FALSEThe presence of freckles is a dominant trait. Cross a homozygous freckled man with a homozygous nonfreckled woman. What are the genotypes and phenotypes of their offspring? a. Cross two of the offspring from the above cross (sorry about the incest). What are the genotypes and phenotypes or their offspring? b. Cross a heterozygous freckled man with a nonfreckled woman. What are the genotypes and phenotypes of their offspring?As attached, is a pedigree related question. I have a question, is it correct that individual I 1 's phenotype is Ff (heterozygous) whereas individual I 2 is ff (recessive homozygous)? That would mean that the ratio of Widow's Peak: Straight hair(no widow's peak) would be 1:1 ? So the chances of getting a Widow's Peak is 50% ? Is this correct? Am I doing it right.
- In the fictitious monster Lochnessius coolnameii, coat color is under the control of an autosomal gene, with white coat (W) dominant over black coat (w). The monster’s ability to produce horns is a sex-influenced trait, that is dominant in males but recessive in females. Let Horned = H, and hornless = h. Consider the cross of a homozygous white & horned male with a homozygous black & hornless female. What genotypes and phenotypes are expected in the F1? What genotypes and phenotypes are expected in the F2? In what ratios? Zappy is a horned white male. It was bred to the following four females, and the results are presented here: Mother Offspring Alcremie: hornless, black 1 horned white female Blissey: hornless, white 1 hornless black female Chansey: horned, black 1 horned, white female Delcattie: hornless, white 1 hornless, black male + 1 Horned white…If a homozygous tall pea plant is crossed with a homozygous shortpea plant, what are the possible genotype and phenotype of theoffspring? Legend: T- tall pea plant t- short pea plant Genotypes of the parents: TT x tt Question to answer ff: 1. What is the genotypic ratio? 2. What are the possible phenotypes of the offspring? 3. What is the phenotypic ratio?In four O’ clock flowers, red flowers (R) show incomplete dominance to white flower (r). The heterozygous condition produces pink flowers. Give the expected genotypic and phenotypic ratios for the offspring of a cross between two pink flowering plants.