ecology; study of living things and the environment
zoology; study of animals
botany; study of plants
microbiology; study of very tiny living beings
<span>My pea plant has an unknown genotype for flowers, whether it has two dominant traits for white flowers (WW) or one dominant and one recessive (Ww) leading to white flowers; therefore I am doing a testcross in order to determine the genotype of my pea plant. The best plant to do this with is one that has a phenotype of purple flowers (ww) - that is, it is homozygous for the recessive trait.
If I use a homozygous recessive plant, I know exactly what its genotype is. I don't have to worry about whether it's got one or two dominant alleles; I know that at least half of my alleles are going to be the recessive w.
This makes identifying the offspring's genotype very simple. If I find that the offspring have at least some purple flowers among them, I know that my original plant had to be Ww; that is it had to have one dominant and one recessive allele for the flower color gene. If, however, all of the offspring are white flowers, I know that my original pea plant had both dominant alleles (WW).</span>
Unicellular Organisums:
Unicellular organisms don't live as long and multicellular organisms. Unicellular organisms are smaller and they are faster at reproduction. Disadvantages- Unicellular organisms only have one cell that is used to function their entire being. Short life span, can't grow lager then multicellular organisms.
Multicellular organisums:
Intelligence and Evolution.
Bigger Is Better.
Less Stress Equals A Longer Lifespan.
Cells Can Take Care Of Each Other.
More Energy Is Needed For Normal Functioning.
Infection Becomes A Possibility When Multicellular.
Takes Longer To Reach Maturity And To Breed
