The following is a description of allelic frequency. Read the passage carefully and then write your answer.
In cattle, roan is a pattern of red and white which is the most prevalent. There are only a few red
cows and only a few white cows. On a sheet of scratch paper develop a frequency distribution chart
that shows this. Now read the following scenarios and decide what kind of shift has happened with
the allelic frequency.
Scenario 1
Mr. Huckle, the farm owner is very superstitious. He thinks the roan cattle are bad luck. Last time he
butchered roan cattle and sent the meat to the market, everyone in town got sick. He now prefers to
butcher only the solid colored cows and sell their meat instead. Name the kind of distribution this
would result in.

i think the answer is b.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

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.