If you wrote a brief essay discussing the impact of recombinant dna technology on genetics as we perceive the discipline today, what applications of recombinant dna technology should be included?
a) forensics
b) plant and animal production
c) medical advances
d) human modification
e) natural selection
f) drug development
g) understanding gene function
h) plant and animal husbandry

Plant and animal production, medical advances, natural selection, understanding gene function and plant and animal husbandry.

Explanation: Recombinant DNA is widely used in biotechnology, medicine and research. Today, recombinant proteins and other products resulting from the use of recombinant DNA technology are found essentially in any Western Pharmacy, in doctors and veterinarian offices, medical testing laboratories, and in biological research laboratories. In addition, organisms that have been manipulating using recombinant DNA technology, as well as product derived form those organisms.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!