Dna Flashcards
what is a species
a group of living organisms or similar individuals that can exchange genes or interbreeding. They can ate and produce fertile offspring
what is variation?.
It is the difference between individuals of same species caused by genetic or environmental factors.
inherited variations
eye color
blood group
animal fur
environmental variation
scars
tattoos
hair length
both genetic and environmental
height
weight
hair color
what is a mutation
a damaged gene cell
benefits of variation
if everyone was genetically the same a disease could wipe out an entire species.
which scientific term describes an organisms features
characteristics
Types of variation
continuous- characteristics that change gradually
discontinuous- limited possible values
what is inheritance
genetic info passed from parent to child
Where is DNA stored
Nucleus
What is a chromosome
Carry genetic material in form of gene
made out of long strands of DNA
What is a gene
A short section of DNA code for protein
Why do mutations occur
When DNA is copied an error can occur
WHAT IS BIODIVERSITY
Biodiversity is a measure of range of living organisms within a habitat
