A genotypically wild-type fruit fly is crossed to a fly with homozygous recessive mutationsin two different genes that result in a wingless and an eyeless phenotype. The F1generation is 100% phenotypically wild type. Two of the phenotypically wild-type F1 fliesare mated and the following offspring are observed in the F2 generation:Wild type: 367Wingless (wg): 119Eyeless (ey): 134Eyeless, wingless (ey; wg): 52Part 1Assuming independent assortment, how many F2 offspring would be expected to behomozygous for the wingless mutation but have normal eyes?O224O126O 112O 378Part 2How many degrees of freedom are there in the results of this cross?O0O 10203O4

Name: A genotypically wild-type fruit fly is crossed to a fly with homozygo
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Description: A genotypically wild-type fruit fly is crossed to a fly with homozygous recessive mutationsin two different genes that result in a wingless and an eyeless phenotype. The F1generation is 100% phenotypically wild type. Two of the phenotypically wild-t

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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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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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A genotypically wild-type fruit fly is crossed to a fly with homozygous recessive mutations
in two different genes that result in a wingless and an eyeless phenotype. The F1
generation is 100% phenotypically wild type. Two of the phenotypically wild-type F1 flies
are mated and the following offspring are observed in the F2 generation:
Wild type: 367
Wingless (wg): 119
Eyeless (ey): 134
Eyeless, wingless (ey; wg): 52
Part 1
Assuming independent assortment, how many F2 offspring would be expected to be
homozygous for the wingless mutation but have normal eyes?
O224
O126
O 112
O 378
Part 2
How many degrees of freedom are there in the results of this cross?
O0
O 1
02
03
O4

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Mendelian genetics refers to the fundamental principles of inheritance first described by Gregor Mendel in the mid-19th century. It describes how genes are passed down from parents to offspring, and how the traits associated with those genes are expressed in individuals. Mendelian genetics is based on the idea that genes are carried on chromosomes and that each individual has two copies of each gene, one inherited from each parent. It also involves the concepts of dominant and recessive traits, and the use of Punnett squares to predict the likelihood of particular traits appearing in offspring. Overall, Mendelian genetics is the basis of modern genetics and has greatly contributed to our understanding of inheritance and the underlying mechanisms of genetic diseases.

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