Explain Measuring the heritability of bill depth in populations of Darwin’s finches?

In the Ireland, 9% of the population is red haired.  Assuming mating is random, what is the frequency of heterozygotes in Ireland?

Which of the following statements about the studies on Darwin's finches conducted by Rosemary Grant and Peter Grant since the 1970s is correct?     -For the trait of beak depth, there are clear differences among individuals on the island Daphne Major.     -After comparing measurements of beak depth between parents and offspring across many families, they found that similarity in beak depth is mainly due to genetic inheritance.     -After the 1977 drought, it was found that the average beak depth of the population has increased when compared to the population average before the drought.     -The study of Darwinâ s finches is often used as an example of natural selection in the field.     -All of the above

Give typed explanation not written How can we measure gene flow between discrete populations? a. By estimating the proportion of individuals in the populations that are immigrants. b. By estimating the migration variance (σm2). c. By counting the number of offspring each individual has. d. By counting the number of connected populations.

Results of a study on local adaptation of color patterns in snakes show the frequency of different color patterns of water snakes of Lake Erie (Nerodia sipedon) found on the mainland shores and scattered islands within the lake. Type A snakes are unbanded, Type D is strongly banded, and Types B and C are intermediates. Given that natural selection favors unbanded snakes on the islands, how can you account for the presence/perpetuation of banded snakes on the islands? 100 Percentage 80 N=63 60 40 20 0 ABCD Ontario mainland N=64 A B C D Peninsular mainland N=16 ABCD Kelleys Island N= 214 A B C D Bass complex islands N=188 L ABCD Middle and Pelee islands O Natural selection favors unbanded snakes on the mainland. O Snakes on the islands represent a case of the so-called founder effect. O Natural selection favors banded snakes on the mainland, which occasionally migrate to the islands. O Mutation rates converting unbanded alleles to a banded form operate at high frequencies on islands.

Explain how migration affects allele frequencies between neighboring populations, and calculate the magnitude of such a change.

Grouse in Russia show a recessive mutation “short-tail” that causes problems in the control of direction when flying. In 2002 a survey  of a large, freely interbreeding, population of 1,856 grouse revealed 142 with short tail feathers. What proportion of the grouse population would you expect to be heterozygous at the short-tail locus ?