Question Paper for Sr. Teacher (Sec. Edu.) Comp. Exam - 2025(Science) Rajasthan English MCQ Q27.Choose the INCORRECT pair: AProtoplast fusion of two different species — Somatic hybrids BCallus — Differentiated mass of cells CMeristem culture — Virus-free plants DPollen culture — Haploid plants EQuestion not attempted Show answer Correct answer: Callus — Differentiated mass of cells