Apea plant that has round seeds has the genotype rr. it crossed with a pea plant that has wrinkled seeds and the genotype rr. what is the probability that the offspring will have wrinkled seeds

1/2 or 50%

Explanation:

This question involves a single gene coding for seed shape in pea plants. According to the question, the round allele (R) is dominant over the wrinkled allele (r) i.e. the round allele will mask the phenotypic expression of the wrinkled allele in a heterozygous state (Rr).

According to the question, a pea plant that is heterozygous for seed shape (Rr) is crossed with a homozygous recessive pea plant (rr). The cross will produce four possible offsprings with the genotypes: Rr and rr.

Rr genotype will be phenotypically round-seeded while rr will be phenotypically wrinkled.

Hence, the probability that an offspring with wrinkled seeds will be produced is 1/2 or 50%

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.