Inheritance

Sex cell production

gametes

Inherited Characteristics

gentic info from partents

two pieces

tongue rolling

eye colour

hair colour

height

family trees help us look at this

Phenotype

appearance

this comes from certain gentic info inherited from parents

Drosphila

scientific name for fruit flies

commonly used in gentic experiments

true breeding

an organism that has either two recessive or dominant alleles

monohybird

breeding experiment involving two different allels of one gene

F1 & F2

First and secongd generation

Homozygous and Hetrozygous

when an organism possesses 2 identical forms of a gene, its genotype is said to be Homozygous and true breeding

when an organism has 2 different forms of a gene its genotype is said to be hetrozygous and is not true breeding

recessive

weaker allele

dominant

stringer allele

chromosomes

threadlike x structure found on the nucleus of a livong cell

two matching sets

46

23

x x

female

x y

male

types of continuous variation

hair length

hand span

height

weight

Types of discontinuous varation

skin colour

foot size

tongue rolling

eye colour

hair colour

Variation