
Chi-Squared Test in Genetics

Interactive Video
•
Biology, Mathematics, Science
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of a Punnett square in genetics?
To predict the outcome of a genetic cross
To identify the DNA sequence of a gene
To calculate the probability of genetic disorders
To determine the age of an organism
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you have 16 fruit flies, how many are expected to be yellow and normal according to the model?
12
16
3
9
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the expected number of yellow and normal fruit flies from a sample of 100?
Add 9 and 16 and multiply by 100
Subtract 9 from 16 and multiply by 100
Divide 9 by 16 and multiply by 100
Multiply 9 by 100
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why must observed values be whole numbers in a chi-squared test?
Decimals are not allowed in statistics
Whole numbers are easier to calculate
The calculator will give an error with decimals
Decimals do not represent real data
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of using a chi-squared test in genetics?
To determine the age of a genetic sample
To test the goodness of fit between observed and expected data
To calculate the probability of a genetic mutation
To identify the dominant gene in a cross
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a small chi-squared value indicate about the genetic model?
The model is likely incorrect
The observed data is far from expected
The model is likely correct
The data is insufficient
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the degree of freedom if there are four categories in a chi-squared test?
4
3
2
1
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