2. which of the following situations would produce a hill plot with nh < 1.0? explain your reasoning in each case. (a) the protein has multiple subunits, each with a single ligand-binding site. binding of ligand to one site decreases the binding affinity of other sites for the ligand. (b) the protein is a single polypeptide with two ligand-binding sites, site one causes a structural change that decreases affinity for the second ligand. (c) the protein is a single polypeptide with a single ligand-binding site. as purified, the protein preparation is heterogeneous, containing some protein molecules that are partially denatured and thus have a lower binding affinity for the ligand. (d) the protein is multiple subunits and as one ligand binds, the second binds with higher affinity.

What is one benefit of a non renewable resource, such as natural gas? a. generates large amounts of electricity b. less expensive c. produces pollution d. will run out eventually

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

Bisphenol a (often called bpa) is a chemical found in products that people use every day, from water bottles to food containers to children's toys. unfortunately, bpa leaches out of its many products and makes its way into our bodies. what are the health effects of bpa exposure? ongoing research is finding that elevated exposure to bpa can affect a wide variety of developmental and physiological processes, but one of the first studies of bpa's health effects came about because of a simple mistake in the lab. at a laboratory at case western reserve university in 1998, geneticist patricia hunt was making a routine check of her female lab mice. as she extracted and examined developing eggs from the ovaries, she began to wonder what had gone wrong. she noticed that many of the eggs showed problems with their chromosomes, and some had irregular amounts of genetic material, which can lead to miscarriages and birth defects in mammals. she learned that a lab assistant had mistakenly washed the plastic mouse cages and water bottles with a harsh soap, releasing bpa from the plastic. knowing that bpa is an endocrine disruptor, a chemical that can enter organisms and mimic hormones, hunt set out to discover whether it had adversely affected her mice.