In a population of 500 sheep in Hardy-Weinberg equilibrium, 80 individuals have black wool while the remainder have white wool. White wool (W) allele dominant over black wool (w) allele.

a) Please calculate the frequency of homozygous dominant, homozygous recessive, and heterozygous individuals in this population.

b)Please calculate the frequencies of black wool alleles and white wool alleles in this population

the answer is b. glad to .

i need

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.