False, <span>What a punnett square does, is it tells you, given the genotypes of the parents, what alleles are likely to be expressed in the offspring</span>
Answer:
f(A1) = 0.9700, f(A2) = 0.0300
Explanation:
According to Hardy-Weinberg equilibrium equation:
p + q = 1
p² + 2pq + q² = 1
where,
p = frequency of dominant allele
q = frequency of recessive allele
p² = frequency of dominant homozygous genotype
2pq = frequency of heterozygous genotype
q² = frequency of recessive homozygous genotype
q² = 9/10000 = 0.0009
A2 = q
= √0.0009 = 0.03
A1 = p
= 1-q
= 1-0.03 = 0.97
Oxygen in the air can cause sliced fruit to brown, a process called enzymic browning (an oxidation reaction). Phenols and the enzyme phenolase are found in the cells of the apple, and when these are exposed to oxygen in the air, for example through slicing, the oxygen causes a reaction.
