GENETICS

if your good at athlectics then thank your genetics

WHAT IS GENETICS

Branch of biology that studies heredity

WHO DISCOVERED GENETICS

GREGOR MENDELL, he used peas to reprent the traits give from a female pea to male pea.
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contrast the follow term: genotype/phenotype

dominant-oberved traits of an organisms thats masked by the dominant form of a trait.recessive -traits of an organisms that can be masked by the dominant form of a trait.heterozygous-when there are two of the sam alleles for trait.(Tt)homozygous-when there are two different alleles for trait.(TT)genotype-combination of genes in an organism.(GG)phenotype-outward appearance of an organism regardless of it genes.(blue eyes)

punnett square

genotype- AA=25% Aa=50% aa=25%
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INCOMPLETE DOMINANCE

incomplete dominance is inheritance pattern where the phenotype of a heterozygous is intermediate between those of the two homozygotes. its like crossing a red flower snap dragon plant (RR) with a white flowered snap dragon plant (R'R') all of the F offspring will have pink flower

CODOMINANT

Codominat alleles casue the phenotype of both homozygous to be produced in heterozygous individuals. in codminance, both alleles are expressed equally

MULTIPLE ALLLES

Traits controlled by more than two alleles have multiple alleles and it allows two alleles  of a genes can exist within an individual diploid cell.

DESCRIBE SEX-LINKED TRAITS

traits controlled by genes located on sex chromosomes are sex-linked traits. its like fruit fly