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science hour four


What is homozygous? having identical alleles (DD,dd)
What is heterozygous? having different alleles (Dd)
What does dominant mean? alleses that are expressed in geotype, it shows up.
What is recesive mean? alleles that is hidden in the genotype, you cant see.
What is genotype? the genetic makeyp of an organism all the genes that an organism has expressed as letters.
What are alleles? an alternate form of a gene for a specific trait or gene product.
What is Phenotype? the appearance of an organism resulting fron the interaction of the genotype and the environment.
What is a purebred? having identical alleles for a trait.
What is an egg cell? the female gamete
What is cloning? a cell, cell product, or organism that is genetically identical
What is fertilization? the union of male and female gametic nuclei
what is selective breeding? the intentional mating of two animals in an attempt to produce offspring with desirable characteristics or for the elimination of a trait
What is sperm? a male reproductive cell
What is pedigree? an ancestral line
What is replication? DNA replication is simply the process that all living things use to copy their DNA
Created by: Jenna-lee