Which of the following is/are true about the Hardy-Weinberg Principle?

(I) If Hardy-Weinberg equilibrium is observed at a gene, it implies that there is no selection on the entire genome.
(II) A population that is increasing in size will never reach Hardy-Weinberg equilibrium.
(III) If a population has 10 individuals, and the genotype frequencies at a particular locus are freq(AA) = 0.25, freq(Aa)=0.5, freq(aa) =0.25, then this information alone is enough to allow us to conclude that this population is in Hardy-Weinberg equilibrium.

a. II and III
b. None of these are true.
c. I and II
d. III only
e. II only

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

that is true   : ) hope this you

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