Inheritance: Pea Plant Genes by Deuanna Curry
Storyboard Tekst
- Hello, Everyone. My name is Gregor Mendel.By experimenting with pea plant breeding, I developed three principles of inheritance that described the transmission of genetic traits, before anyone knew genes existed. I will explain them more on the next 2 panels.
- When working with garden pea plants, I found out that crosses between parents that differed for one trait produced F1 offspring that all expressed one parent's traits. The traits that were visible in the F1 generation are referred to as dominant, and traits that disappear in the F1 generation are described as recessive. the inheritance of two genes in pea plants with reference to seed colour and shape. A Dihybrid cross is a cross between two different lines/genes that differ in two observed trait
- Futhermore, F1 plants had the same phenotype as the dominant P1 parents, they possessed a hybrid genotype (Aa) that carried the potential to look like the recessive P1 parent (aa). After observing this potential to express a trait without showing the phenotype, I put forth his second principle of inheritance: the principle of segregation. According to this principle, the "particles" (or alleles as we now know them) that determine traits are separated into gametes during meiosis, and meiosis produces equal numbers of egg or sperm cells that contain each allele (Figure 5). I hope this helped 21 century students! Farewell! :)
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