Many serious diseases can be passed from parent to offspring through genes. in which case given below is a recessive disease not able to be passed on?

if one parent has one allele or has no alleles for the disease
if one parent has zero, one, or both alleles for the disease
if one parent has no alleles for the disease
if one parent has both alleles for the disease only

Marianne is comparing two animals: a fruit fly and a fruit bat. she asks, "do a fruit fly and a fruit bat share a common ancestor in their evolutionary history? " according to evolutionary theory, what is the answer to marianne's question?

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.