Chitest

Question 1

What is a null hypothesis, what do you do with it

Answer 1

Because In science it’s almost impossible to prove something true, instead we prove a hypothesis by proving that all the alternatives are wrong

Hypothesis that is tested, either rejected or fail to be rejected

Question 2

What is the alternate hypothesis

Answer 2

The hypothesis of difference
You never accept it
And it is not proven by the rejection of the null hypothesis

Question 3

What is a test statistic

Answer 3

A numerical quantity, computed from the data of a sample in reaching a decision on whether to reject or fail to reject the null hypothesis

Question 4

What is a pedigree

Answer 4

A family tree that describes the interrelationships of parents and children accros à générations

Inheritance of a trait can be traced and described using pedigrees

Question 5

How are male and females differentiate in pedigrees

Answer 5

Male are squares and females are circles
- matings are represented by the line between two individuals

Question 6

What do colours represent in a pedigree

Answer 6

Different phenotypes

Question 7

How do you determine if a trait is sex linked or not

Answer 7

If the trait is expressed more in males than in females ; most likely sex linked

If a trait is expressed equally in males and females; most likely autosomal