Unit 1 Genetics Practice Test Pre-AP Biology

Which significance level  
(column) do you look at when finding the critical value?

• .50
• .10
• .05
• .01

How do you find degrees of freedom?

• one less than the possible genotypes
• one less than the possible phenotypes
• total number divided 2
• total number times 2

How do you find critical value?

• where degrees of freedom lines up with significance level
• where significance level lines up with chi-square
• the difference between total and chi-square 
• degrees of freedom minus significance level

Observed in the wild are 10 circles, 20 squares and 30 triangles. The ratio for this particular population is 2:3:5 
observed: 10 circles     expected: 12
observed 20 squares    expected : 18
observed 30 triangles   expected: 30
What is the degrees of freedom?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-3

What are the degrees of freedom for the following χ² test?

• 6
• 2
• 5
• 36

How do you find the expected number?

• ratio from punnett square multiplied to total 
• ratio from punnett square divided by total
• ratio from punnett square multiplied by observed number
• ratio from punnett square minus observed number

Tags

NGSS.HS-LS3-3

What are the degrees of freedom?

• 3
• 2
• 1
• 9.488

How many degrees of freedom will be present?

• 4
• 5
• 6
• 7

The manager of a high school cafeteria is planning to offer several new types of food for student lunches in the following school year.  She wants to know if each type of food will be equally popular so she can start ordering supplies.  To find out, she selects a random sample of 100 students and asks them, "Which type of food do you prefer: Asian food, Mexican food, pizza, or hamburgers?"  Here are the data in the table provided.  Identify the p-value and decide which of the following is the most appropriate conclusion?

• Because 0.0129 is less than α = 0.05, fail to reject H₀.  There is convincing evidence that the food choices are equally popular.
• Because 0.0129 is less than α = 0.05, reject H₀.  There is convincing evidence that the food choices are not equally popular.
• Because 0.0289 is less than α = 0.05, reject H₀.  There is convincing evidence that the food choices are not equally popular.
• Because 0.0289 is less than α = 0.05, fail to reject H₀.  There is not convincing evidence that the food choices are equally popular.

How do you find degrees of freedom?

• one less than the possible genotypes
• one less than the possible phenotypes
• total number divided 2
• total number times 2

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3