In gel electrophoresis why does the DNA move toward the bottom of the wall of gel? A. DNA is negatively charged. B. DNA is positively charged. C. DNA is extremely heavy. D. DNA is less dense than air.

Charges in an electric field will move electrons to:

What makes sponges unique among animals?

What is the main structural component of a plant?

The amount of radioactive isotopes contributing heat to Earth is greater now than it was when Earth was newly formed. True False

Is a major product made from gymnosperms

Individual iv-3 is born as a male affected with condition b but not condition a. his parents are bred again, and an ultrasound shows that the fetus is another male. the relevant portion of the pedigree is shown below.

If a diet does not provide adequate carbohydrate to meet immediate energy needs, the body compensates by altering its metabolism of other nutrients. insufficient dietary carbohydrate can lead to elevated levels of ketone bodies.

If an enzyme-mediated reaction were carried out at a temperature that was higher or lower than optimal, the vmax for the reaction would probably be

Which of the following is not a mechanism of microevolution? Group of answer choices migration (gene flow) natural selection speciation genetic drift

What weather factor is also a measurement of energy held within the air? Humidity Pressure Temperature Wind