In beetles, an X-linked gene determines body size, with normal size (M)completely dominant to miniature body size (m). Body color is determined by an autosomal gene with two alleles, where B is incompletely dominant to b such that BB beetles are black, Bb beetles are brown and bb beetles are yellow.  Male beetles are heterogametic (XY). The following cross is performed: brown, miniature sized body female  X  brown, normal sized body male    Based on this information, which of the following statements is FALSE?   Select 3 correct answer(s) Question 3 options:   A)  1/8 of the female progeny will have yellow miniature bodies.   B)  All of the male progeny will have miniature bodies.   C)  1/4 of the total progeny will be black.   D)  1/4 of the male progeny will have yellow miniature bodies.   E)  All of the female progeny will have miniature bodies.   F)  ¼ of the total progeny will have brown, normal sized bodies.   G)  This is a dihybrid cross.

Q: X-linked ichthyosis is an X-linked recessive trait that manifests in part as dry, scaly skin…

A: If one allele is missing it is hemizygous. Heterozygous is the presence of two different alleles at…

Q: Consider a couple: a woman who is homozygous for a recessive mutation that causes X-linked…

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Q: Both red/green color blindness (R=normal, r=colorblind) and Duchenne-type muscular dystrophy…

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Q: Consider the cross of a homozygous white & horned male with a homozygous black & hornless female.…

A: Given that white coat (W) is dominant over black coat (w). Also, horns are dominant in males and…

Q: Harbour seals are an aquatic mammal found in many oceans. In seals the gene E is X-linked and F,G,…

A: Mammals have XY sex determination system. Aquatic mammals would also have the same sex determination…

Q: Anhidrotic dysplasia (lack of sweat glands) is caused by loss-of-function of an X-linked gene. It is…

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Q: In a parental cross of a ADHL disease trait, where the father is affected and the mother is…

A: ADHL disease is a autosomal dominant trait

Q: (a) What pattern of transmission is most consistent with this pedigree? (1) autosomal recessive, (2)…

A: Pedigree  A family tree or chart that represents a person's genetic family history by symbols and…

Q: A human female heterozygous for X-linked trait causing red-green color blindness marries a red-green…

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Q: Raspberry eyes (ras) is a sex-linked recessive trait in Drosophila. Eyeless (ey) is an autosomal…

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Q: In humans, blue eyes are inherited as a recessive autosomal trait and color blindness is an X-linked…

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Q: an unaffected woman who is heterozygous for the x linked allele causing duchenne muscular dystrophy…

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Q: Color blindness in humans is controlled by an X-linked completely recessive allele (Xc), while…

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Q: In humans, hemophilia is an X-linked recessive disorder that affects the gene for factor VIII…

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Q: Hemophilia is a disease inherited as a X-linked recessive trait while pattern baldness is controlled…

A: Haemophilia is a X-linked recessive trait, and baldness is an autosomal recessive trait. The…

Q: If a normal male reproduces with a heterozygous normal female, what are the expected genotypes and…

A: Hemophilia is a common hereditary coagulation blood disorder due to deficiency or reduced activity…

Q: In the Bombay phenotype, a homozygous recessive individual hh appears to have blood type O

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Q: Color blindness is an X-linked recessive disease. A female and a male with normal vision have 4…

A: The failure to discriminate between red and green colors is the most common symptom of color…

Q: Tightly curled hair is caused by a dominant autosomal gene in humans. If a heterozygous curly-haired…

A: The major traits of Autosomal inheritance is : trait should not skip generations as well as the…

Q: Duchenne Muscular Dystrophy is an X-linked recessive disease. A couple is wanting to have a child.…

A: Duchenne muscular dystrophy is the most common childhood form of the disease; it occurs in one of…

Q: Red-green color blindness is an X-linked recessive disorder. If Allison is heterozygous (a carrier),…

A: The X-linked genes show a different pattern of inheritance in males and females. The male progeny…

Q: e, since albino mice are neither yellow nor agouti colored. oss is AaCc to Aacc. What fractions of…

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Q: An allele for coat color in mice, Y, produces a yellow coat color when present. The phenotypes of…

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Q: Two autosomal genes controlling beak shape in finches are 18 cM apart on the same chromosome. Pointy…

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Q: Hemophilia is caused by an X-linked recessive mutation in humans. If a man whose paternal uncle…

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Q: Duchenne muscular dystrophy is a recessive disorder caused by a rare,loss-of-function allele that is…

A: Duchenne muscular dystrophy (DMD) is a quickly progressive type of muscular dystrophy that happens…

Q: In humans, red-green color-blindness is a recessive X-linked trait. A man with red-green color-…

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Q: In a parental cross for an autosomal MOI, the ratio (Disease phenotype):(WT phenotype) differ for…

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Q: In wobble bats coat color is determined by a single gene. A black coat is dominant to a brown coat…

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Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.