In one particular British forest, assume that all of the typica, or white, forms
ID: 217933 • Letter: I
Question
In one particular British forest, assume that all of the typica, or white, forms of the moth have died, leaving only carbonaria, or black, forms. Over time, the soot pollution was stopped in this forest and the trees returned to their natural color. What would be the simplest and fastest way for the population to regain a typica form of the peppered moth? Select one O a. Epigenetics could be used to recolor the living moths. O b. A carbornaria form could re-mutate a white form of the coloration gene. O c. The population could experience genetic drift until a white form appears. O d. A typica moth could migrate from a nearby forest that still has white peppered moth forms. What was the selective agent that allowed the carbonaria form of the peppered moth to rise in frequency in certain parts of Britain? Select one or more a. Another territorial species of moth. O b. Industrial pollution in the form of black soot c. Predatory birds d. Humans e. The moth's genes. What process led to the creation of the carbonaria, or black, form of the peppered moth? Select one: O a. Moths hybridized with another black-colored moth in response to the appearance of soot in the forest. O b. The typica, or white form, of the moth mutated the carbonaria gene in response to soot appearing in the environment. C. Certain peppered moths 'decided' to be black in coloration after experiencing soot on trees. d. We dont know. The carbonaria form was pre-existing in the population of moths at a low frequency. OExplanation / Answer
1. Option A is correct.
Epigenetics is a reversible change. It does not include DNA sequence changes. It is faster and reversible. Appearance and selection of revertants is a long process and dependent on multiple factors.
2. Options B and C are correct.
Two selection pressures are responsible for the evolution of black forms.
i. Industrial pollution changed the coloration of the area.
ii. Predators could easily detect white moths. So, black moths evolved to escape from predators.
3. Option B is correct.
Mutation in the carbonaria gene and its selection lead to the prevalence of black forms after the industrial revolution.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.