Two genes are linked or not can be ascertained by:
Show Hint
- Used to test linkage in genetics.
- Compares observed and expected ratios.
- Significant deviation indicates linkage.
- F-test
- t-test
- Chi-square test
- Z-test
The Correct Option is C
Solution and Explanation
This question tests knowledge of statistical tests used in genetics.
Step 2: Detailed Explanation:
The Chi-square test (C) is used to determine whether two genes are linked.
It tests the deviation of observed phenotypic ratios from expected Mendelian ratios.
If genes are unlinked, the observed ratio should fit independent assortment (9:3:3:1 for a dihybrid cross).
Significant deviation indicates linkage.
Other tests:
- F-test (A): Used to compare variances.
- t-test (B): Used to compare means.
- Z-test (D): Used to compare proportions.
Thus, the Chi-square test is used to ascertain gene linkage.
Step 3: Final Answer:
Thus, the Chi-square test is used to determine whether two genes are linked, which corresponds to option (C).
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