This is showing possible outcomes, genotypes and phenotypes, of offspring from two parents. this is usually shown using a punnett square.
example: a monohybrid genetic cross is a genetic cross where only one gene or trait is being studied: a cross between a tall plant and a short plant. it could be represented as tt x tt. in this case, the genetic cross would produce tt offspring that are all tall.

A homozygous short (tt) plant is crossed with a heterozygous tall (Yy) plant. The phenotypic ratio of the offspring is 50 percent Tt and 50 percent tt.

Further Explanation:

Genotypes help in the genetic makeup of any individual. Phenotype describes as a physical characteristic of an individual. The genotype is responsible for the phenotypes of any individual. If two copies of the same alleles present in an organism, its genotype is called homozygous. If two copies of different alleles present in an organism, its genotype is called heterozygous.

When a homozygous dominant individual is crossed with the homozygous recessive individual, the resultant offspring has the genotype, which is heterozygous and phenotype, which is dominant. All possible genotypes of the parent, as well as offspring, are graphically represented in a Punnett square.

In the given punnet square below, the parent homozygous green plant having a genotype tt is crossed with the parent heterozygous yellow plant having a genotype of Tt. The resultant offspring of filial generation tends to be 50 percent of Tt, which means heterozygous and 50 percent tt, which means homozygous.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Mendelian Inheritance

Keywords:

Punnet square, genotype, phenotype, homozygous, heterozygous, allele, characteristics, filial generation, dominant, recessive.

the answer is trees if i'm not mistaken

"d.) carbon dioxide and hydrogen sulfide"