GENETICS: please help explain the following question. Will give a thumbs up if g
ID: 269329 • Letter: G
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GENETICS: please help explain the following question. Will give a thumbs up if given the correct information.
z mutation of the ellow (zeste) 11. The partially recessive, X-linked Drosophila gene zeste (z) can produce a yellow eye color only in flies that have two or more the wild-type white (w) gene. Using this tandem duplications of the w" gene called property identified. Males with the genotype z wtRy t zeste ey the genotype y zl VV spl/),t ?? w+R spl+. (These four genes are closely linked on the X chromosome order given in the genotype, with the centro the right of all these genes: y yellow bodies; y' - tan bodies; spl - split bristles;, spl normal bristles) Out of 81,540 male progeny of these females, the following exceptions were found: were es. These males were crossed to females with , in the + R mere to Class A Class B Class C Class D 2430 yellow bodies, zeste eyes, wild-type bristles 2394 tan bodies, zeste eyes, split bristles 23 yellow bodies, wild-type eyes, wild-type bristles 22 tan bodies, wild-type eyes, split bristles a. What were the phenotypes of the remainder of the b. What events gave rise to progeny of classes A an 81,540 males from the first cross? d B?Explanation / Answer
a. Phenotypes of the rest males were: (1) yellow bodies, zest eyes, split bristles.
(2) yellow bodies, wild-type eyes, split bristles.
(3) tan bodies, zest eyes, wild-type bristles.
(4) tan bodies, wild-tyoe eyes, wild-type bristles.
b. Progeny of classes A and B produced from genetic recombination.
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