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Biology · Quick Reference
Lesson 14 — Genetics & DNA MCQ Practice Cheat Sheet
In one line: Twelve facts spanning DNA replication mechanics and Mendelian inheritance that this practice set keeps testing.
Fast Recall
1Chargaff's rule. A=T, G=C.
2Semi-conservative = one old strand + one new strand per daughter molecule.
3Helicase unwinds; ligase joins Okazaki fragments.
4Independent assortment applies to genes on different chromosomes.
5Monohybrid 3:1; dihybrid 9:3:3:1.
6Blood type AB = codominance.
More Fast Recall
7Colour blindness = X-linked recessive.
8Red + white → pink = incomplete dominance.
9mRNA carries the code from DNA to the ribosome.
10IAi genotype = Type A blood.