Where do scientist get restriction enzymes

Could two humans have some differences caused by mutation in their DNA sequences for insulin, yet still make the exact same insulin proteins?

A cell that is undergoing mitosis is examined with a light microscope. an observation that would allow for identification of the cell as an animal cell rather than a plant cell would be

in order to provide meaningful information measurements must be expressed in terms of their A. Numbers B. Units C. Accuracy D. Quantities

Which of the following is not part of the biosphere? a. hydrosphere c. atmosphere b. stratosphere d. lithosphere

What are some traits of a baboon?

Amphetamine increase synaptic levels of serotonin because: a. it increases the activity of the VMAT b. it blocks COMT c. it increases the activity of MAO d. it causes exchange diffusion

Which of the following best describes a human sperm cell? A haploid cell formed in the male testes A diploid cell formed in the male testes A haploid cell formed in the male penis A diploid cell formed in the male penis

What is the definition of the term ecosystem? Choose 1 answer A. An environmentally friendly pattern of industry and manufacturing B. An evolutionary process whereby plant life reclaims a particular area C.

During DNA replication DNA is split apart into two strands. As the new DNA strands are created, what is the function of DNA polymerase? A. It slows the reactions occurring during DNA replication. B. It labels the ends of the strands as 3' or 5'. C.

Vitamin d deficiency leads to softening of bone, which is known as