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Peppered Moth

Peppered Moth (Biston betularia) is a temperate species of night-flying moth. The purpose of the peppered moth activity is to model the effects of natural selection on the appearance and genetic make-up of a natural population.


Peppered Moth

Peppered moths were gray with dark flecks, but very rarely a black moth was observed. The color forms are illustrated here; note that they belong to the same species; they reproduce with each other, and the color difference depends primarily on alternate alleles for a single gene. The black moths were presumably produced by mutation: biochemical change in DNA that makes up the genes for a trait.

The larvae forms a dirty gray-colored pupa or cocoon which resembles a pod. This sac, which hangs between branches, is about four to five inches long and an inch or two wide.

Life Cycle: not all young produced in a generation survive to reproduce many more moth eggs are produced than can survive; many moths will be eaten by birds before they reproduce. there is variation among individuals some are black in color, others are gray the variation is genetic black moths have different alleles for color than do gray moths the different forms differ in fitness in industrial environments, black moths survive to reproduce better than do gray moths since gray moths get eaten by birds

The purpose of the peppered moth activity is to model the effects of natural selection on the appearance and genetic make-up of a natural population. By adjusting the amount of pollution in the environment, the student is able to see the differences in the frequencies of light and dark moths in the population. The student may also investigate the survival differences between dominant and recessive genes when one phenotype has a selective advantage over the other.

There are two forms of the peppered moth Biston betularia in England- a dark-colored form carbonaria and a light form typica. In the early 1800’s, most moths were the light form. The dark form increased in frequency during the last half of the 1800s. 98% of the Moths in Manchester were the dark form.


Peppered Moth

The increase in the dark carbonaria form of the moth occurred at a time of rapid industrialization in England- the industrial revolution. During this time, an increase in the amount of coal-burning factories caused widespread pollution. The pollution killed light-colored lichens, causing the trees to be darker. The trees in polluted areas were also covered with dark soot.

The heat of the sun will kill all the moths and larva. If you can’t get natural sunlight, then running the clothes through dryer will also work. But even after all these measures, you still have moth problem in your home, then the best option is to call Beyond Pest Control. Our pest control services will eliminate this problem forever. They can ensure that all moths including Indian meal moths and clothing moths are eliminated from every nook and corner of your home. If you require more information about How to get rid of Cecropia Moth please take a moment and explore the rest of our or visit our


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