H2: Introduction

A pea plant with genotype pp is a plant that is homozygous recessive for the gene that controls its seed color. This means that it has two copies of the recessive allele, p. This plant will always produce seeds that are yellow when crossed with a homozygous dominant plant for seed color.

H2: Characteristics of a Pea Plant with Genotype pp

The pea plant with genotype pp only produces yellow seeds. This is because the presence of the dominant allele, P, is necessary for the production of green seeds. The plant will also have other characteristics that are determined by other genes, such as plant height, flower color, and seed shape.

H2: Inheritance Pattern of the p Allele

The p allele is a recessive allele, which means that an individual must inherit two copies of the allele to express the corresponding trait. When a pea plant with genotype pp is crossed with a plant that is homozygous dominant for seed color (PP), all of the offspring will have the dominant phenotype, which is green seeds. However, when a pea plant with genotype Pp is crossed with a plant that is homozygous recessive for seed color (pp), half of the offspring will have yellow seeds and half will have green seeds. This is because each offspring has a 50% chance of inheriting the recessive allele from the heterozygous parent.

H2: Importance of Pea Plants with Genotype pp

Pea plants with genotype pp are important in genetics research because they are homozygous recessive for a trait that is easy to observe and quantify. This made them the ideal organism for Gregor Mendel's experiments on inheritance patterns. Mendel discovered the principles of inheritance by crossing pea plants with different traits and observing the patterns of segregation and independent assortment. Today, pea plants with genotype pp are still used in genetic research to study inheritance patterns and to develop new strains of crops with desirable traits.

H2: Conclusion

A pea plant with genotype pp is a plant that is homozygous recessive for the gene that controls its seed color. This plant only produces yellow seeds and is an important organism in genetics research. Understanding the inheritance pattern of the p allele has contributed greatly to our understanding of the principles of inheritance, and pea plants with genotype pp are still used today in genetic research.