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18 terms

Science Chp 5

Genetics and Heredity
STUDY
PLAY
The passing of traits from parents to offspring
Heredity
Characteristics
feature that have different forms in a population
self-pollinating
When a plant fertilizes itself
trait
a different form of a characteristic
Homologous chromosomes
chromosomes that carry the same set of genes
incomplete dominance
each allele has its own degree of influence
genes
Instructions for an inherited trait
punnett square
a diagram that shows the possible combinations of gene pairs for a given trait
Alleles
different forms of a gene that decides a characteristic
phenotype
an organism's appearance
homozygous (BB or bb)
A plant with either two dominant or two recessive genes
heterozygous (Bb)
A plant with one dominant and one recessive gene
Cross pollination
when a plant pollinates another kind of plant
Probability
the mathematical chance that something will happen
Genotype
formed from both inherited alleles
Pure Dominant:
DD
Pure Recessive:
dd
Heterozygous:
Dd