Suppose that in a neuron, ena is +58mv: ek is -80mv, and vrest
is+50mv. what can you correctly assume about the
concentrationgradients and permeabilities for na+ and k+ in this
cell? circleall that apply
i) in this neuron, both na+ and k+ are at equilibrium whenthe cell
is at vrest.
ii) in this neuron, the external k+ concentration is greaterthan
the internal k+
concentration.
iii) in this neuron, the membrane is permeable to na + butnot to
k+.
iv) in this neuron, the k+ permeability of the membrane isless than
the na+ permeability.

Approximately 90% of all cases of polycystic kidney disease are inherited in an autosomal dominant fashion. the disease is typically related to mutations to genes (pkd1 and pkd2). pkd genes can be found on chromosome 16. the disease occurs in approximately 1: 800 to 1: 1000 people. here is a hypothetical example. the dominant allele d will cause the development of pkd. the recessive allele is known as d. what genotypes would correspond to suffering from pkd? dd, dd what genotypes would correspond to being normal (not suffering from pkd)? dd consider that 1: 1,000 people have pkd in your population of 325million. consider that pkd is inherited in an autosomal dominant fashion. show you math for all of the following questions: what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is p? what is q? how many people in your population would have pkd?

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled