When a cross (dihybrid) is made between plants bearing round yellow (RRYY) and wrinkled green (rryy) seeds, all the plants in F1. (Ref. to Fig. 26.1) 
In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green…
NEET UG 2006 — Zoology Principles of Inheritance and Variation
2006mcqeasy
In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation the cross RRYY × rryy?
Official previous-year question
Held on 30 Apr 2006 · Verified 9 Jul 2026.
Options
- A
round seeds with yellow cotyledons, and wrinkled seeds with yellow cotyledons
- B
only round seeds with green cotyledons
- C
only wrinkled seeds with yellow cotyledons
- D
only wrinkled seeds with green cotyledons
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