ale-pattern baldness is sex-linked and recessive. A carrier female has a child with a normal male. Give the genotype and phenotype ratios for their offspring.
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Male-pattern baldness is sex-linked and recessive. A carrier female has a child with a normal male. Give the genotype and
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- A person who is a carrier for a genetic trait ___________. a. is heterozygous for a dominant trait b. is heterozygous for a recessive trait c. is homozygous for a recessive trait d. could be either a or b but not cFor each phenotype below, list the genotypes (remember to use the letter of the dominant trait) Curly hair is dominant to straight hair. . ____ straight ____ curly ____ curlyBy looking at the following table, circle the trait which is sex-influenced. Genotype Male Female BB Bald Bald Bb Bald Non-bald bb Non-bald Non-bald
- Incomplete penetrance can make autosomal dominant traits skip generations within a family tree. True or False.Albinism is a recessive disorder where there is a lack of melanin. Andrea and her husband Claude both have normal skin pigmentation. Andrea’s mother has the albino phenotype, but her father and her brother do not (normal pigmentation). Claude’s parents are both normal, but he has a sister who has the condition (is albino). Answer the following questions Determine the genotypes for Claude, Claude’s parents, and sister. NOTE: Draw a punnet square or show your work.Which genotype indicates a carrier of an autosomal recessive trait? bb BB Bb
- Wavy hair is incomplete dominance of curly hair. If a wavy-haired woman has children with a straight-haired man, what are the possible genotypes and phenotypes? Be sure to use the correct shorthand that shows neither gene is recessive.A man is homozygous dominant for fair skin and heterozygous for black-straight hair, his wife has brown skin and black-curly hair. The wife's hair color is the same genotypically with the husband. His mother in-law hair color is red since birth. The couple wanted to have kids. Give the genotype of the husbandIf an individual has a widow's peak, which genotypes are possible? Homozygous recessive Unable to determine Homozygous dominant Heterozygous
- The percentage chance that the mother described above will give birth to a daughter with mid-digital hair and freckles is what percentage?Color-blindness is an X-linked recessive disorder. Under what circumstances will this condition manifest in a child? Top of Form If the child is a male and its mother has the recessive allele If the child is a female and its father has the recessive allele If the child is a female and its mother has the recessive allele If the child is a male and its father has the recessive alleleIf an individual has a widow's peak, but one of their parents does not, which genotypes are possible? Heterozygous Homozygous dominant Homozygous recessive Unable to determine
