Thursday, August 28, 2014

Up coming


Life gets tough! And I hope my three followers don't mind my absence too much and please forgive me. Here is an idea as to what I want to cover in this quarter. I will finally be releasing my anti chemical campaign article with some in depth whys and dos and don'ts when debating to use chemicals on your plants. I'll be going over exactly how these chemicals function, how the plants process them, and how we as human beings process these chemicals once we decide to use products laden with them. I am extremely excited to share with you my articles on f1, heritage, hybrid, and genetics. Going into Mendel's law of segregation and helping you determine your plants genetic profile.
From Mendel's law of segregation we see that the alleles for a trait separate when gametes are formed (through a type of cell division called meiosis). These allele pairs are then randomly united at fertilization. If a pair of alleles for a trait are the same they are called homozygous. If they are different they are called heterozygous. In the first example, the F1 plants are all heterozygous for the pod color trait. Their genetic makeup or genotype was (Gg). Their phenotype or expressed physical trait was green pod color.
The F2 generation pea plants showed two different phenotypes (green or yellow) and three different genotypes (GG, Gg, or gg). The genotype determines the phenotype that is expressed. The F2 plants that had a genotype of either (GG) or (Gg) were green. The F2 plants that had a genotype of (gg) were yellow.
The phenotypic ratio that Mendel observed was 3:1, 3/4 green plants to 1/4 yellow plants. The genotypic ratio however was 1:2:1. The genotypes for the F2 plants were 1/4 homozygous (GG), 2/4 heterozygous (Gg), and 1/4 homozygous (gg). Please look forward to this season!