10. researchers observe a large population of birds on a remote island. birds in the population are found to have either red crest feathers or white crest feathers on their heads. genetic analysis indicates that the allele for red crest feathers is dominant over the allele for white crest feathers. in a survey of the population, the researchers determine the frequencies of the crest-feather phenotypes. the results of the survey are shown in the table below. phenotype frequencies in an isolated bird population phenotype number of individuals red crest feathers - 11,088 white crest feathers - 1,759 assuming that the bird population is in hardy-weinberg equilibrium, what proportion of future populations is expected to be heterozygous controlling crest feather color? give your answer as a value between 0 and 1, rounded to two decimal places.

Suppose that the proportion of the white crest alleles (r) is given by w which of the Red crest allele (R) is given by p. We have that p+w=1.

The probability that a private has 2 r alleles is given by WW since for every allele position the probability is w. Only these individuals have a white phenotype.

Hence, we get that w^2=

The right-hand side is the proportion of white birds in the total population. Doing the calculations yields that w=0.37. From this, we calculate that p=0.63.

The possible ways we've heterozygous individuals are the combinations Rr and RR. The probability for every of these is PW. Thus, the total probability is 2pw.

This is equal to 0.466=0.47. This is the fraction of the future population that is going to be heterozygous assuming the conditions of the Handy-Weinberg equilibrium like random reproductive matching etc.

Thus, the result of the survey is 0.466=0.47.

Learn more about the Bird population here:

link

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