12 Rachel is analyzing a DNA sample to identify its base pairs. Her results show that 40% of the sample is adenine. Which other base makes up 40% of the sample?
A cytosine
C thymine
B guanine
Duracil

Based on her survey, which advertising mediums will work best to publicize leslie's in-store specials?

Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.