Heredity

Created by Lydia131 

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26 terms

What is heredity?

passing of DNA

Gregor Mendel

Austrlian monk
father of genetics
7 charateristicsa of a pea plant

Characteristics

feature that has differnt forms of populations

Traits VS. Characteristics

Traits-hair color
Characteristics-brown, blue,red, blonde

True Breeding

always produces offspring with the same traits-asexual

Gregor Mendels Discovery

the recessive trait disappears in 1 generation,in the 2nd generation it comes back

Mendel

hypothesized that each plant must hvae 2 heritable factors for each trait one form each parent

Factors

segments of DNA known as genes

Genes

segments of DNA

Alleles

differnt versions of genes

Dominat

uppercase letter

Recessive

lowercase letter

Example

BB-dominant
Bb-dominat
bb-recessive

Heterozygous

1 dominant and one rescessive

Homozygous

same allele

Genotype

are your actual genes

Phenotype

physcial characteristics- observable traits

Domiant

contributes to the phenotype if one or two copies are present in the genotype

Recessive

allele contributes to the phenotype if 1 or 2 copies are present

Complete Dominance

when 1 chromosome contains a dominat allele and the other contains a rescessive, the dominat allel determines the phenotype

Genes 2

1 gene influeneces one or more traits

Enviorment

the enviorment can influnece an organisms phenotype

Traits

incomplete domiance and codomiance 1 trait is not completely domiant over another

Incomplete Dominance

each allele in a heterzygous indiviual influences the phenotype
{a blend of both types}

Codominance

both of the alleles in a heterozygous indiviual contibutes the phenotype

Codominance 2

blood type is an example

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