Genetics and Evolution Flashcards
Having a scar from an injury
Environmental variation
Being the tallest in the class
Environmental and genetic
Variation can occur due to what 3 factors
Genetic Environmental and mutations
Being able to roll your tongue
Inherited variation/genetic
What are differences within a species called
variation
What type of variation is weight
Environmental and inherited
Which scientist did not receive a Nobel prize for their work towards DNA discovery
Rosalind Franklin
What is the structure of DNA
Double helix
Who is the only person still alive that received a Nobel prize for the discovery of the structure of DNA
James Watson
What is the shape of DNA
Double helix
Where are chromosomes found in humans
In the nucleus of a cell
DNA is in structures. The structures make up who you are and each person has 23 pairs. What are they called?
Chromosomes
What does extinction mean
There are no more of a species left anywhere in the world
Is keeping animals in captivity a cause of extinction
NO
Has climate change forced species to become extinct
Yes
Can a natural disaster cause extinction
Yes
According to Darwin’s theory of evolution, how do new species evolve?
By natural selection
Why can bacteria evolve quicker than other species
They produce at a faster rate
What is natural selection
A process where certain organisms are more likely to survive and reproduce then other members of the same species because they possess certain genetic variations
What change would describe Lamarck’s acquired characteristics theory
Rabbits grew longer ears because they had to use them more and so they stretched with use. These rabbits passed their long ears to their offspring
A feature which is well used will grow stronger and be passed on to the offspring.
Is this statement one of the principles of natural selection
NO
What was the name of the book published by Charles Darwin in 1859
On the origin of species
What are the two main sources of evidence for evolution?
Fossils and antibiotic resistant bacteria
