Inheritance
Variation
Types of discontinuous varation
eye colour
foot size
skin colour
types of continuous variation
weight
hand span
hair length
What is inheritance
chromosomes
x y
male
x x
female
23
46
two matching sets
threadlike x structure found on the nucleus of a livong cell
dominant
stringer allele
recessive
weaker allele
Homozygous and Hetrozygous
when an organism has 2 different forms of a gene its genotype is said to be hetrozygous and is not true breeding
when an organism possesses 2 identical forms of a gene, its genotype is said to be Homozygous and true breeding
F1 & F2
First and secongd generation
true breeding
an organism that has either two recessive or dominant alleles
breeding experiment involving two different allels of one gene
monohybird
Drosphila
scientific name for fruit flies
commonly used in gentic experiments
Phenotype
appearance
this comes from certain gentic info inherited from parents
family trees help us look at this
tongue rolling
eye colour
hair colour
height
Inherited Characteristics
gentic info from partents
two pieces
Sex cell production
gametes
