Suppose both a group of people with a heritable disease and a control group without the disease are tested for their genotype at the disease locus and their genotype for a large number of different snps (single‑nucleotide polymorphisms). the disease locus is later determined to be in linkage disequilibrium with one snp in particular. at what frequency are the disease allele and a particular nucleotide variant of the snp found together, compared to the frequency expected by chance?

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks