Kernel color in wheat is determined by two genes, with two alleles of each (A 1 , A 2 , B 1 , B 2). Each 1 allele contributes an equal dose of color and each 2 allele contributes no color. The greater the number of 1 alleles, the deeper the color. If double heterozygotes (A 1 A 2 B 1 B 2) are selfed, what proportion of the progeny will have exactly two doses of color (two 1 alleles)

the statement is true

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.