The mitotic spindle is composed of protein fibers called that coordinate the movements of during mitosis.

Most scientific questions are based on opinions. hypotheses. observations. experimental data.

In familial hypercholesterolemia individuals homozygous for the allele causing the disorder completely lack receptors on liver cells that take up cholesterol from the blood stream. heterozygous have one-half the number of receptors while individuals homozygous for the normal allele are phenotypically normal. this is an example of a.epistasis b.complete dominance c. incomplete dominance d. codominance

The organelle pictured is found in cells of and is theorized to have once been an independent organism.