How would life in a lake be affected if ice sank and lakes froze from the bottom up? PLEASE HELP

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

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

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.