Principles of Inheritance and Variation is an important topic in the Biology section in MHT CET exam. Practising this topic will increase your score overall and make your conceptual grip on MHT CET exam stronger.
This article gives you a full set of MHT CET PYQs for Principles of Inheritance and Variation with explanations for effective preparation. Practice of MHT CET Biology PYQs including Principles of Inheritance and Variation questions regularly will improve accuracy, speed, and confidence in the MHT CET 2026 exam.
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MHT CET PYQs for Principles of Inheritance and Variation with Solutions
1.
In humans, the condition of color blindness is caused by a recessive allele located on the X chromosome. A color-blind woman marries a man with normal vision. What is the probability that their son will be color-blind?- \( 0\% \)
- \( 25\% \)
- \( 50\% \)
- \( 100\% \)
2.
Saliva contains the enzyme _________. That digests carbohydrates (starches).- (A) Cellulose
- (B) Pepsin
- (C) Trypsin
- (D) Amylase
3.
One of the following is NOT an example of incomplete sex-linkage- Total colour-blindness
- Retinitis pigmentosa
- Nephritis
- Myopia
4.
In relation to Gross primary productivity and net primary productivity of an ecosystem, which one of the following statements is correct?- (A) Gross primary productivity is always less than net primary productivity.
- (B) Gross primary productivity is always more than net primary productivity.
- (C) Gross primary productivity and net primary productivities are one and the same.
- (D) There is no relationship between Gross primary productivity and net primary productivity.
5.
Fruit is a modification of:- (A) Female gametophyte
- (B) Ovary
- (C) carpel
- (D) Nucellus
6.
The high energy radiations, salts of heavy metals, CO and protein poisons like cyanides, make protein inactive by- (A) Coagulating protein molecules
- (B) Breaking bonds
- (C) Sudden change of pH
- (D) Linking amino acids in irregular manner
7.
Blood group agglutinogens and are found:- (A) In plasma
- (B) On WBC's
- (C) On RBC's
- (D) On blood platelets
8.
A man with blood group AB marries a woman with blood group O. What is the probability that their child will have blood group A?- \( 0\% \)
- \( 25\% \)
- \( 50\% \)
- \( 75\% \)
9.
Which of the following is an example of intergenic gene interaction?- Multiple alleles
- Co-dominance
- Incomplete dominance
- Polygenes
10.
Drug called 'Heroin' is synthesized by:- (A) Methylation of morphine
- (B) Acetylation of morphine
- (C) Glycosylation of morphine
- (D) Nitration of morphine
11.
What is the genotype of Drosophila showing normal wings?- vg+
- vg no
- vg
- vg ni
12.
What is the percentage of children being a carrier of haemophilia if their mother is a carrier and their father is a normal man?- (A) 25%
- (B) 50%
- (C) 75%
- (D) 100%
13.
Which of the following shows recessive traits?- Inflated pod shape.
- Purple flower.
- Axile placentation.
- Length of stem.
14.
To which of the following interactions both partners are adversely effected _______.- (A) Competition
- (B) Predation
- (C) Parasitism
- (D) Mutation
15.
Stomatal aperture is surrounded by guard cells and widens (opens) when guard cells are _____________.- (A) flaccid
- (B) turgid
- (C) bean shaped
- (D) dumb-bell shaped
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