3. Agouti (A) is wild type and produces alternating bands of pigment on each hair. Black (a) is recessive to agouti. A mutation on gene B (recessive b) can eliminate all color. In a cross between agouti (AABB) and albino (aabb) mice, what genotypes, phenotypes, and proportions are expected in the offspring in F1 and F2 generations? Answer 4. What unusual phenomenon is at work in each of the following disorders? a. Mara develops dark patches on her face. Her family physician suspects that she may have alkaptonuria. However, a dermatologist discovers that the woman has been using a facial cream containing hydroquinone, which causes skin patches in dark-skinned people?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Hi! Pls I need help in these 2 items.


3. Agouti (A) is wild type and produces alternating bands of pigment on each hair.
Black (a) is recessive to agouti. A mutation on gene B (recessive b) can eliminate
all color. In a cross between agouti (AABB) and albino (aabb) mice, what
genotypes, phenotypes, and proportions are expected in the offspring in F1 and
F2 generations?
Answer
4. What unusual phenomenon is at work in each of the following disorders?
a. Mara develops dark patches on her face. Her family physician suspects that
she may have alkaptonuria. However, a dermatologist discovers that the woman
has been using a facial cream containing hydroquinone, which causes skin
patches in dark-skinned people?
Answer
L/L
Transcribed Image Text:3. Agouti (A) is wild type and produces alternating bands of pigment on each hair. Black (a) is recessive to agouti. A mutation on gene B (recessive b) can eliminate all color. In a cross between agouti (AABB) and albino (aabb) mice, what genotypes, phenotypes, and proportions are expected in the offspring in F1 and F2 generations? Answer 4. What unusual phenomenon is at work in each of the following disorders? a. Mara develops dark patches on her face. Her family physician suspects that she may have alkaptonuria. However, a dermatologist discovers that the woman has been using a facial cream containing hydroquinone, which causes skin patches in dark-skinned people? Answer L/L
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