Biology Test #4 – Heredity & Evolution

Chapter: NCERT Class 10 – Ch 9 | NEET Foundation

🔁 10 MCQs | Scoring: +4 Correct, –1 Incorrect | Live Explainer After Submit

1. The physical expression of a trait is called:
a) Genotype b) Phenotype c) Gene d) Allele

2. A tall plant (TT) is crossed with a dwarf plant (tt). The ratio of tall:dwarf in F1 is:
a) 1:1 b) 3:1 c) 2:2 d) All tall

3. Traits which are inherited but not expressed in F1 are:
a) Dominant b) Recessive c) Co-dominant d) Inherited

4. Sex of an unborn baby in humans is determined by:
a) X chromosome of mother b) X chromosome of father c) Y chromosome of father d) Nutrition

5. Evolution is the result of:
a) Sudden changes only b) Genetic variation c) Need of organism d) Climate

6. The sequence of evolution is best explained by:
a) Bacteria → Fish → Amphibian → Man b) Man → Fish → Reptile c) Reptile → Bacteria → Fish d) Fish → Bacteria → Dinosaurs

7. Which of these is not inherited from parents?
a) Eye color b) Blood group c) Skin color d) Pierced ear

8. Which of the following is a vestigial organ in humans?
a) Appendix b) Kidney c) Liver d) Heart

9. The number of chromosomes in human gametes is:
a) 23 pairs b) 46 c) 44 d) 23

10. The father of genetics is:
a) Darwin b) Pasteur c) Mendel d) Watson

📊 Test Summary:

🧬 Type “N” to move to Class 10 Bio Test #5 → Our Environment 🧪 Or “C5” to jump to Chemistry Ch 5

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