Round yellow x wrinkled green seeds: F1 and the F2 combinations
The same question, asked 3 times: 2024*, 2025*, 2026. Every wording below, oldest first.
Try each one first, then open its answer.
Question 1
2024
24Mendel crossed pea plants with two pairs of contrasting characters. RRYY rryy Round, Yellow Wrinkled, Green He observed 4 types of combinations in generation. Which of the combinations were new ? Write the conclusion drawn by this experiment.Question 2
2024
23Mendel crossed a round and yellow seeded pea plant with a wrinkled and green seeded pea plant. What did the plants of generation look like in terms of shape and colour of seed ? On self-pollinating generation plants, plants with four types of combinations of characters were seen in generation. Write the combinations along with their ratios.Question 3
2025
30A pure pea plant having round (R), yellow (Y) seeds is crossed with another pure pea plant having wrinkled (r), green (y) seeds. Subsequently progeny is self-pollinated to obtain progeny. (a) What do the seeds of generation look like ? (b) Give the possible combinations of traits in seeds of generation. Also give their ratio. (c) State the reason of obtaining seeds of new combination of traits in generation.Question 4
2026
13Based on Mendel’s experiment show the cross between round, yellow seeds of pea plant (RRYY) with wrinkled and green seeds of pea plant (rryy) upto generation. Write the number of seeds/plants with following genetic (Genotype) makeup in generation : (i) RRYY (ii) rryy