NEED ANSWER ASAP (95 points) 1.Give an example of one type of mutation, Give a Definition of it, and explain what is might do.

2.Give an example of how the environment can effect an organsism's genetics?

3.If a mutation happens in a somatic cell, will it be passed on to the next generation? Why or why not?

4.Explain the difference between a GENE and an ALLELE

5.What is the advantage of CROSSING OVER in Meiosis?

6.If the FREQUENCY of a trait is INCREASING in a population of animalswhat might that mean?

7.Explain very briefly what causes Trisomy 21

8.Imagine a population of animals is separated by a natural eventand half of them a forced into a valley, and the other half are forced into the mountains. Imagine both populations survive. What type of changes might you notice a million years later between the 2 populations? Why is this?

9.What are 3 things you know about Genetic Variation now that you didn't know before this Unit?