Who studied the role of RNA in protein synthesis, specifically in the bacteria E. coli.?

What organisms does not have kidneys

How many pairs of cranial nerves are there?

A scientist is examining a multicellular organism that has the ability to harness the energy from the sun to make its own food. What kingdom would be the best option when classifying this organism? A. Animalia B. Archaea C. Fungi D. Plantae

1) Explain why increasing the amounts of the two enzymes changed the life spans of the mice. 2) Express your opinion about whether people should be engineered to have high levels of the two enzymes.

Which cell is found in the nervous system? a.) sodium b.) axon c.) neuron d.) dendrite When an action potential reaches the end of the axon, what happens? a.) The sodium ions travel back toward the dendrites. b.

One of the first breakthroughs in biotechnology was the discovery of the gene that makes insulin. Part of this process involved scientists making DNA to match each possible sequence of insulin mRNA. What was the next step of this process? A.

If mollusks evolved before arthropods, where will their fossils be found?

Over time, a river cut through a field where some mice lived and some birds were nesting. Tell over time why the mice developed into 2 different species, but the birds did not

Using radioactively labeled dna probes in studies of heredity makes it possible for a scientist to

During the first four days after conception, the zygote undergoes rapid cell divisions and becomes multicellular. What is this cell division called?