The Notch mutation is a deletion on the X chromosome of Drosophila melanogaster. Female flies heterozygous for Notch have an indentation on the margins of their wings; Notch is lethal in the homozygous and hemizygous conditions. The Notch deletion covers the region of the X chromosome that contains the locus for white eyes, an X-linked recessive trait. Give the phenotypes and proportions of progeny produced in the following crosses. a. A red-eyed Notch female is mated with a white-eyed male. b. A white-eyed Notch female is mated with a red-eyed male. c. A white-eyed Notch female is mated with a white-eyed male.
The Notch mutation is a deletion on the X chromosome of Drosophila melanogaster. Female flies heterozygous for Notch have an indentation on the margins of their wings; Notch is lethal in the homozygous and hemizygous conditions. The Notch deletion covers the region of the X chromosome that contains the locus for white eyes, an X-linked recessive trait. Give the phenotypes and proportions of progeny produced in the following crosses. a. A red-eyed Notch female is mated with a white-eyed male. b. A white-eyed Notch female is mated with a red-eyed male. c. A white-eyed Notch female is mated with a white-eyed male.
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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The Notch mutation is a deletion on the X chromosome of Drosophila
melanogaster. Female flies heterozygous for Notch have an indentation
on the margins of their wings; Notch is lethal in the homozygous and
hemizygous conditions. The Notch deletion covers the region of the X
chromosome that contains the locus for white eyes, an X-linked
recessive trait. Give the
produced in the following crosses.
a. A red-eyed Notch female is mated with a white-eyed male.
b. A white-eyed Notch female is mated with a red-eyed male.
c. A white-eyed Notch female is mated with a white-eyed male.
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