characteristacs: Seed color (yellow or green), Seed Shape ( smooth or rough) and Flower color ( white, red or pink)
Such caracterisc variations are known as traits
Each variation is either 'dominant' or "recessive"
Recessive trait: is as one that tends to remain hidden in certain generations of pea plants
Dominant trait: a trait that tends to appear in those same generations
is a physiological feature, bodily characteristics, or behavior of an organism ( forma katoruyu vidno)
the genetic make-up of an organism
A genotype of "YY" results in phenotype of yellow seeds
A genotype of "yy" resluts in phenotpye of green seeds
Parental Generation (P)
Plants from pure line
Pure line: is a population that breeds true for (show now variations in) the particular character being studied. ex. only purple flowers.
the offspring of the parental generation
although these seeds were developing withing the pods of the parental generation, they represented the new generation - the F1 gen.
F1 generation(pees in the P generation) where planted and let grow from them. Then, this plants were allowed to self polinate and fertilized and develope F2 Generations that developed yellow seeds and green seeds
alternative forms of a single gene
ex. 1 gene for seed color came in pairs (2 alleles) - one of which coded for yellow seeds, the other for green seeds.
These alleles resided on separate homologous chromosomes
Law of Segretation
Differing characters in organisms result from two genetic elements (allels) that separate in gamete formation, such that each gamete gets only one of the two alleles. - seperation of homologous chromosomes during meiosis
or from notes - pair sof alleles separate during gamete formation. The fusion of gamets at fertilization creates allele pairs again.