A fruit fly of genotype a+/a . b+/b (parent 1) is crossed to another fruit fly of genotype a/a . b/b (parent 2). The progeny of this cross were: Genotype / Number of individuals a+/a . b+/b / 15 a/a . b/b / 12 a+/a . b/b / 34 a/a . b+/b / 39 The original arrangement of alleles in parent 1 would have been what?

i tried the eyeshadow trick you told me about and it worked so good i i did a yellow going into orange colors and it was bright and you could see it on my eyes

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

the correct answer is 2 and 4