A scientist named Thomas Hunt Morgan studied genetics in fruit flies. Specifically he looked at wild type (normal) wings versus vestigial (shortened) wings. When he crossed a wild type female with a vestigial male he expected to see 50% parental phenotypes and 50% recombinant phenotypes in the offspring. However, what he actually found was 83% parental phenotypes and 17% recombinant phenotypes. What does this suggest about the genes he was studying? How do the percentages help us determine this?

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.