Adenine, Guanine, Cytosine and Uracil are nitrogenous bases that belong to DNA
RNA
none of the above

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.

Discuss the functions of epithelial connective nerviud and muscular tissues