1. Model: Scientists use a Punnett square to model the different possible offspring
genotypes from a parent pair. The parent genotypes are written across the top and side
of the square, as shown. The four possible offspring genotypes are then filled in.
The first square is filled in for you. Fill in the remaining squares.
A. What are the genotypes of the offspring?
B. What percentage of the offspring will have black fur?
C. What percentage of the offspring will have white fur?

answer; i do believe that the correct answer is; ///mendelian genes are at specific loci on the chromosome and, in turn, segregate during meiosis;

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.