If huntington's disease is due to a dominant trait, shouldn't three-fourths of the population have huntington's while one-fourth has the normal phenotype?
a.) in large populations, mendelian ratios are ineffective.
b.) appearance of a trait in a population does not solely depend on its dominant or recessive nature.
c.) natural selection is eliminating huntington’s disease.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

want or the answer