Mendel's observations of pea plants contributed to the study of modern genetics. use these terms gene, genotype, dominant, recessive, phenotype, allele, trait, in your explanation?

The Punnett square was method developed by Gregor Mendel using peas, to predict the probability of inheriting a trait from the parent’s gene. A single trait could be tested using a four by four square, and adding trait is adding one more the exponential value.

He first used a pure strain, which contained only the specific gene he wanted. A gene is a basic unit of heredity. In a pure breed the genotype is considered to be homozygous. For example in a round and wrinkle peas breed. The genotype would RR for round and rr for wrinkled. A capital letter is used when the trait is dominant, while small letters for recessive.

The parent's gene will be separated in to Alleles and used to create a punnett square. Like for example

r r

R Rr Rr

R Rr Rr

The ones in the x-axis is the recessive wrinkled trait, while the on y-axis is the dominant round trait. This gives off a heterozygous genotype of Rr, meaning all the offspring will only show the dominant trait, having a round shape. It can be said in Phenotypic ratio as 4:0 because phenotype is the set of observable characteristics of a specific trait. Where in this case, one could clearly see that all offspring will show the dominant strain.