Describe how natural selection can sometimes lead to the persistence of harmful or even lethal alleles. include an example.

German cockroaches, bulging eyes, bu, are recessive to normal eyes, bu , and curved wings, cv, are recessive to straight wings, cv . both traits are encoded by autosomal genes that are linked. a cockroach has genotype bu bu cv cv, and the genes are in repulsion. which set of genes will be found in the most common gametes produced by this cockroach?

What maintain homeostasis when a persons internal body temperature is 97.5°f

Which example would the nurse consider to be a part of systems thinking theory?