Two autosomal genes in drosophila code for eye color and wing shape (the wild type is dominant). the genetic symbols for these traits are for eyes: pr: purple and pr+: red and for wings vg: vestigal and vg+: normal. a) what are the genotypes of a pure-breeding purple vestigial fly and a purebred red normal fly? b) what do we get if we cross these two pure-breeding lines? give the genotype and the phenotype. c) what would you expect if you test-cross these f1's? d) which alleles are from the test-cross individual? e) the results that morgan got were not what you would expect. instead, he saw fewer of the purple normal (pr pr vg+ vg ) and red vestigial (pr+ pr vg vg). what do these results tell us about the gametes produced by the original heterozygote? f) how did morgan explain these results?

correct answer: false

while planning water activities, it is very important to consider the weather, because if we do not plan and are going for a surf, then it might be that the hurricane came and drown us or may carry us to long distance from where we can not come back. there are many reasons to take information about the weather when we are planning any water activities.

hence, the correct answer would be false.

answer: b

coz red blood cells marrow and circulates the body for 120 days.

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.