Which of the following likely reflects the presence of one or more gene mutations?
A)Fruit flies subjected to intense radiation produce a wider array of variable offspring.
B)A chemical leaking from the surface of an old abandoned coal mine alters a regulatory gene so that a cricket nymph develops an extra set of eyes.
C)The bacteria that cause gonorrhea,a common sexually transmitted disease,have previously been killed by penicillin; however,after continuous usage of the antibiotic,penicillin-resistant strains are now becoming prevalent.
D)Radiation causes an alteration in a DNA nucleotide sequence,which is discovered when mapped,but which appears to be neither increasing nor decreasing in successive generations.
E)All of the choices are correct.

Question

Quizplus · Accepted Answer

All the choices describe scenarios where gene mutations are likely involved, such as radiation-induced mutations, chemical-induced gene alterations, antibiotic resistance due to genetic changes, and detectable changes in DNA sequences.

Which of the Following Likely Reflects the Presence of One