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What is genetics
How characteristics are passed on from one generation to another
What are inherited characteristics
Passed from parents to children by genes
What are acquired chacteristics
Not inherited from parents, they are learnt throughout our life
Where are chromosomes found
Nucleus
What are chromosomes made up of
DNA and protein
What does DNA stand for
Deoxyribonucleic acid
Every human cell contains ____ chromosomes (except gametes)
46
A gamete contains ___ chromosomes
23
What is a gene
A section of DNA that codes for a particular trait
What is meant by dominant trait
The trait that presents itself even if only one parent has this gene
What is meant by recessive trait
The trait that doesn’t present itself in the offspring but the offspring still carries it
Give an example of an inherited characterisitc
Hair colour, blood type, eye colour etc
Give an example of an acquired characteristic
Ride a bike, accent etc
Another word for characteristics is
Traits
How many chromosomes does a zygote contain
46
XX genes are male or female?
Female
