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Variations and Inheritance /
2026 /
Quiz 2

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NCAT Practice Test - Practice Test - Biology - Variations and Inheritance - 2026 Quiz

Attempt 10 MCQs on NCAT Practice Test - Practice Test - Biology - Variations and Inheritance (Year 2026) | Quiz 2

11. Which law is violated by linked genes?

Independent assortment
Segregation
Dominance
Pleiotropy

12. What is the phenotypic ratio from a test cross of a Tt plant?

1:1
3:1
1:2:1
9:3:3:1

13. What is a key reason Mendel chose peas?

Contrasting traits
Rapid growth
Large offspring
Easy to manipulate

14. What are the phenotypes in the F2 of a cross between RRYY and rryy (R=round, r=wrinkled, Y=yellow, y=green)?

9:3:3:1
3:1
1:2:1
1:1:1:1

15. Which factors contributed to Mendel's success?

Pure-breeding lines
Single trait analysis
Large sample sizes
All of these

16. During which meiotic phase does segregation occur?

Anaphase I
Anaphase II
Prophase I
Metaphase I

17. When does independent assortment occur in meiosis?

Metaphase I
Anaphase I
Prophase I
Telophase I

18. What rule is used to calculate the probability of two independent events both occurring?

Product rule
Sum rule
Binomial expansion
Chi-square

19. What rule gives the probability of either event A or event B occurring?

Sum rule
Product rule
Addition rule
Multiplication rule

20. Which statistical test is used to validate Mendelian ratios?

Chi-square test
T-test
ANOVA
Correlation

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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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