ch 8 genetics Flashcards
What is a Characteristic? give exmaple
What smth is in relation to the organism
- my eye colour
What is a Trait?
a variation of a characteristic
- brown (eye coluro)
What is True Breeding?
when the P Generation or parents are Homozygous themselves (their alleles are the same)
Which is displayed more Dominant alleeles or REcessive
Dominant
when do Recessive alleles display?
when the genotype is HOMozygous
What did Mendel do for genetic research?
figured out how offspring inherited their parent’s traits
Genotype
the alleles for trait
Phenotype
what is seen or displayed in organism
Law of Dominance
In gneetic crossing between two TRUE BREEDING organisms, and together, they make Hetereozygote,
the offspring will always display DOMINANT phenotype
what is the purpose of a punnet sqaure?
to show the probnability of an offsprings geno and phenotypes
Law of Segregation
paired genes must separate equally into gametes (haploids) and hav an equal likelyhood of inheriting either gene
Where does The Law of Segregation take place?
During Anaphase in MEiosis 1 - like independant assorment
Incomplete Dominance
sometimes in heterozy, there is a blend of two alleles in the offspring
Codominance
both alleles fro a characteristic is displayed
- like red and white both showing on flowers)