If a DNA molecule contains 30% cytosine, what % of the molecule should be thymine?

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

Across of blue x blue (both heterozygous) would result in

Which structure in the cardiovascular system connect arteries to veins?