Bonjour vous pouvez m'aidez svp je n'y arrive pas alors voila la question a partir de l'exploitation des documents expliquer l'apparition d'un nouveau phénotype dans l'élevage de drosophiles

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

Coat color in cats is determined by genes at several different loci. at one locus on the x chromosome, one allele (x ) encodes black fur and another allele (xo) encodes orange fur. females can be black (x x ), orange (xoxo), or a mixture of orange and black called tortoiseshell (x xo). males are either black (x y) or orange (xoy). bill has a female tortoiseshell cat named patches. one night, patches escapes from bill\'s house, spends the night out, and mates with a stray male. patches later gives birth to the following kittens: one orange male, one black male, two tortoiseshell females, and one orange female. what are the genotypes of patches, the stray male, and the kittens?

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute