1Biologysex linked inheritance
Which traits ar most likely to affect men than women?
- A.X linked recessive
- B.X linked dominant
- C.Autosomal dominant
- D.Autosomal recessive
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Inheritance MCQs for MDCAT
8 Inheritance questions from real MDCAT past papers (2020), each with the correct answer and a written explanation.
8 questionsBiology
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2Biologymodes of inheritance
Alleles both have an effect on the phenotype heterozygotic organism
- A.Dominant
- B.Recessive
- C.Multiple
- D.Co-dominant
Answer and explanation locked
3Biologyhomozygosity and heterozygosity
When both the allele of a genes are same, the organism is said to be:
- A.Heterozygous
- B.Genotype
- C.Homozygous
- D.Phenotype
Answer and explanation locked
4Biologymendelian genetics
“law of independent assortment” states
- A.The each pari of alleles assort independent of other pairs of alleles during gamete formation
- B.That allele fo each pair of constrasting trait have unequal probability to assort with the alleles of other pairs
- C.That that coexisting alleles for each trait segregate (separate) from each other at meiosis so that each gamete receives only one of the two alleles
- D.That pertain to inheritance of single trait (monohybrid cross)
Answer and explanation locked
5Biologybasic terms
Phenotype is
- A.The genetic complement ie the genes in an individual for a particulartrait
- B.Partner of gene pair
- C.The form of appearance of a trait
- D.The position of a gene on the chromosome
Answer and explanation locked
6Biologydominance
In complete dominance
- A.Differendt alleles of a gene are both expressesed in heterozygous condition
- B.One alleles (R) is completely dominant over the other (r) and the presence of recessive allele is functionally hidden the heterozygote (Rr) has the same sound phenotype (RR) heterozygote
- C.The phenotype of the heterozygote is intermediate between phenotypes of the homozygotes
- D.Gene mutation may produce many different alleles of a gene
Answer and explanation locked
7Biologykaryotype
Th particular array of chromosomes that an individual prossess is called its
- A.Genotype
- B.Phenotype
- C.Karyotype
- D.Allele
Answer and explanation locked
8Biologymeiosis
During meiosis, the homologous chromosomes comes together and form pairs this process is called
- A.Linkage
- B.Synapsis
- C.Pairing
- D.Crossing over
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How Inheritance is examined
Inheritance sits in the official PMDC Biology curriculum, the document that defines what can and cannot appear in the 2026 paper. Everything on this page is tagged against that curriculum rather than against a chapter list invented for a website, which is why a chapter here matches the chapter your textbook and your teacher use.
Biology carries 81 of the 180 questions in the real paper - 45% of your MDCAT score, and the MDCAT is half your merit aggregate. PMDC does not publish how those 81questions are split across chapters, so no honest page can tell you “expect four from Inheritance”. What the archive can tell you is what actually appeared: 8 Inheritance questions out of the 77 Biology questions digitised so far.
Work through them with the explanations rather than checking answer letters. The explanation says why the other three options are wrong, and distractors get reused across years far more reliably than whole questions do.
Frequently asked questions
How many Inheritance MCQs are on this page?
8, drawn from one past paper - the 2020 paper. Every one is transcribed from the real paper rather than written to look like a past paper question, and each carries the correct answer with a written explanation. 0 of them are readable in full without an account.
Is Inheritance in the MDCAT 2026 syllabus?
Yes. Inheritance is a chapter of the official PMDC Biology curriculum, and PMDC has confirmed the 2026 syllabus is unchanged from the 2025 revision, so everything on this page is still examinable.
How many Inheritance questions come up in the MDCAT?
PMDC does not publish a per-chapter breakdown, so nobody can tell you a reliable number - be careful with pages that do. What can be counted is the paper as a whole: Biology is 81 of the 180 questions, and 10% of the Biology questions in our archive so far have come from Inheritance.
Do these Inheritance MCQs come with explanations?
Yes, and they are written from scratch rather than copied. An answer letter tells you nothing about why the other three options are wrong, which is the part that transfers to the next question. The first 0 questions of every paper are free to read in full; the rest need a pass.