C Biology question I C x PS2-Fall 2015 B 2 x PS2-Int 2015.pdf x M Inbox 524 falk

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C Biology question I C x PS2-Fall 2015 B 2 x PS2-Int 2015.pdf x M Inbox 524 falk59 x C https:// 68105 mylearningspace.Wlu.ca I & I Joshua Falkenstern A My Home BI-226-AB Geneti 7. Below is a table showing the results of complementation analysis of 10 wing mutant strains 10 of fruit flies isolated in the lab. Each mutant strain is unable to produce wings. In the complementation analysis, each strain is crossed to all of the other strains and the ability to produce wings in the offspring is assessed. If the offspring had wings the box is denoted with a (eg, w1 crossed to 5 produces winged progeny) while if the offspring that did not have wings it is denoted with a (eg. w1 crossed to 2 produces wingless progeny a. How many genes are involved in wing formation? b. When crossed, strains w1 and w2 produces wingless progeny. However, when these wingless progeny are crossed to one another a small number of winged progeny are observed (about 1 in 100 How is this possible? ENG 9:49 AM US 2015-10-19

Explanation / Answer

a. 8 genes are involved in the formation of wings.

b. This is possible due to the loss of mutation in the sebsequent generations of flies. It usually happens very rarely in the population. This is also known as complementation

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