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science 4.2-4.4

probability is a number that describes how likely it is that a event will happen
punnet square is a chart that shows all the possible combinations of alleles that can result from a genetic cross
phenotype two useful terms that geneticists use
genotype two useful terms that geneticists use
homozygous two identical alleles for a trait
heterozygous an organism that has two diifernt alleles for a trait
codominance the alles are neither dominant or recessive
meiosis is the process by which the number of chromosomes is reduced by half to form sex cells
messenger rna copies that coded message from the dna in the nucleus and carriess the message to ribosome in the cytoplasm
transfer rna carries amino acids to the ribosomes and adds them to the growing protein
mutation any change in a gene or chromosome
Created by: andrewr mcalpine