Consider mendel's pea plants in which a single gene determines whether the peas are yellow from the dominant allele y or green from the recessive allele y (when both alleles are y). according to the hardy-weinberg principle of equilibrium, what is the frequency of heterozygous individuals in a population under low selective pressure?

If a single gene Y determinates the colour of the peas than:

YY is dominant homozygous genotype-yellow phenotype

Yy is heterozygous genotype-yellow phenotype

Yy is recessive homozygous genotype-green phenotype.

Hardy-Weinberg equation: p2 + 2pq + q2 = 1, where

p2 is the frequency of dominant homozygous genotype,

2pq is the frequency of heterozygous genotype and

q2 is frequency of recessive homozygous genotype.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

there’s no image attached but i can if you want: )