Use the H-W equation to solve the unknowns of a population t…

Use the H-W equation to solve the unknowns of a population that is composed of 44% homozygous recessive individuals. Show your work.q = _____p = _____q² = ______p² = ______2pq = ______ If this were a real population, how could you describe the distribution that favors the recessive allele? Think in terms of selection.

A very large population of desert pupfish living in a closed…

A very large population of desert pupfish living in a closed basin varies in their tolerance to salinity.  Individuals with at least one dominant copy of a factor known as “halorenal factor S”* have the ability to survive very high salinity water by producing salt crystals in their kidneys and excreting them.  Individuals who are homozygous recessive have reduced survivability, but still manage to reproduce in the spring when winter runoff dilutes the salty water.   Which Hardy-Weinberg conditions would likely be met, and which would not, and why? Choose only one of the “Met” or “not met” boxes, and defend your choice.   Condition Met? Not met? Why? Keep this short and simple and within the box No mutations       Random mating       No natural selection       Large pop size       No gene flow       *halorenal factor S, though totally plausible, is totally invented by me.

A recessive trait remains at 25% frequency in a lab populati…

A recessive trait remains at 25% frequency in a lab population over generations.   a) Analyze what this suggests about fitness and Hardy-Weinberg equilibrium. b) Using Hardy-Weinberg principles, calculate the frequency of allele A in the population described above. Explain your reasoning. c) Estimate the proportion of heterozygotes (Aa) in the same population. Discuss why heterozygosity matters for evolutionary potential.