Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
The following blanks can be filled only by numbers.

1. Gregor Mendel conducted hybridisation experiments on garden peas for (P) years.
2. Mendel selected (Q) true-breeding pea plant varieties.
3. In a human population, there are (R) alleles for ABO Blood group.
4. In Drosophila, genes for white eye and yellow body show (S)% recombination.

The correct arrangement is
BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A P < Q < R < S
  • B R < P < Q < S
  • C S < R < P < Q
  • D R < S < Q < P
Solution:
1159 Upvotes Verified Answer
The correct answer is: S < R < P < Q
Gregor Mendel, conducted hybridisation experiments on garden peas for 7 years (1856-1863) and proposed the laws of inheritance in living organisms. Mendel selected 14 true-breeding pea plant varieties, as pairs which were similar except for one character with contrasting traits. In a human population there are 3 alleles for ABO Blood group (IA, IB and i). In Drosophila, genes for white eye and yellow body show 1.3 % recombination

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.