On chromosome 3 of corn, there is a dominant geneA1 which together with dominant gene A2 on chromosome 9 produces aleurone. All other genetic combinations produced colourless aleurone. Two pure colourless strains are crossed to produce an all coloured F1. (a) what were the genotypes of the parental strain and F1?
(b) what phenotypic proportions are expected among the F2?
(c) What genotypic ratio exists among the white F2?​

the match lol

fossil's are like over rated rocks like low key not gonna lie i don't get why we can't just call them old rocks like for real i mean i call my grandpa and grandma that smh

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.