A
Name of the molecule that carries the genetic code of living things
DNA
What is Genetics
The science that studies how genes are passed on through generations
What is a Trait
A characteristic or a feature of a living thing
What is known as the molecule of life?
DNA
How long is one molecule of DNA?
Between 1 and 2 metres long
Where is DNA located?
In the nucleus of the cell
There are 2 main types of traits.
Which are they?
Continuous and Discontinuous Traits
Where are Chromosomes located?
In the nucleus of the cell
All our DNA together is as long as the distance from Earth to Pluto, how many times?
a) 2 times
b) 30 times
c) 17 times
c ) 17 times
What is a Chromosome?
A package or bundle of DNA
Give an example of a continuous trait
Height
Handspan
Armspan
(something measurable)
Do all living thins have chromosomes?
Yes
What is the shape of DNA
Double Helix
Do all living things have the same number of Chromosomes?
No
Give an Examples of Discontinuous Trait
Eye Colour
Hair Colour
Freckles
How many chromosomes in a Human?
46 chromosomes (23 pairs)
What does DNA stand for
Deoxyribo Nucleic Acid
How do we call a section of DNA that codes for a trait?
A gene
Define Discontinuous Trait
A trait that is in Categories
Define Continuous Trait
A trait that is measured and has a range of numerical values