chp 11 vocab Flashcards
true breeding
term used to describe organisms that produce offspring identical to themselves if allowed to self pollinate
trait
specific characteristics that varies from one individual to another
gene
sequence of DNA that codes for protein and thus determines a trait
hybrid
offspring of crosses between parents w different traits
allele
different forms of a gene
segregation
separation of alleles during gamete formation
gamete
specialized cell involved in sexual reproduction
probability
likelihood that a particular event will occur
punnett square
diagram showing the gene combinations that might result from a genetic cross
homozygous
term used to refer to organisms that have 2 identical alleles for a particular trait
heterozygous
term used to refer to an organism that has 2 different alleles for the same trait
phenotype
physical characteristic of an organism
genotype
genetic makeup of an organism
genetics
scientific study of heredity