UNIT 10: INHERITANCE

Inheritance is a core chapter in MDCAT Biology, sitting within the 45% Biology allocation of your 81-question paper.

What this chapter covers:

• Mendel’s laws of Inheritance
• Gene linkage and crossing over
• X-linked Recessive inheritance

This chapter blends conceptual understanding with applied problem-solving, since Mendel’s laws and sex-linked inheritance both require working through genetic crosses, ratios, and probability alongside definitions and mechanisms. In line with the PMDC’s 70% moderate difficulty weighting, most of this chapter sits in the moderate range, though cross-based application questions on independent assortment, linkage, and haemophilia inheritance can push into difficult territory.

Why this practice set helps:

• Covers every subtopic the PMDC curriculum identifies, plus the supporting concepts textbooks present alongside them
• Every question includes a full explanation of why the correct answer is right and why each other option is wrong
• Built to help you learn faster than passive reading, with nothing the exam may draw from left untouched

Work through this set attentively, and you build both the conceptual clarity and cross-solving precision this chapter demands.