CBSE 2025 · Region 4 · Set 1 · Q9 · 1 mark
When a pure-tall pea plant is crossed with a pure-dwarf pea plant, the percentage of tall pea plants in $\displaystyle \mathrm{F}_{1}$ and $\displaystyle \mathrm{F}_{2}$ generation pea plants will be respectively :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle 100$% ; $\displaystyle 75$%
HeredityMonohybrid and Dihybrid CrossesApplymcqeasy
More from Heredity
- In human beings, there are 23 pairs of chromosomes. Out of these 23 pairs of chromosomes (i.e. 46…2025 · asked 3×
- Assertion: A mango seed will germinate to form a mango tree. Reason (R): Heredity determines the process by…2025 · asked 3×
- Assertion: In reptiles, the temperature at which the fertilized eggs are kept decides the sex of the…2025 · asked 3×
- A pure pea plant having round (R), yellow (Y) seeds is crossed with another pure pea plant having wrinkled…2025 · asked 3×
- "Proteins control the expression of various characters." Explain this statement by taking an example of…2025 · asked 3×
- Assertion: A human child bears all the basic features of human beings. Reason (R): It looks exactly like its…2025 · asked 3×
- If pea plants with round and green seeds (RRyy) are crossed with pea plants having wrinkled and yellow seeds…2025 · asked 3×
- The lowest part of the ear called earlobe, is closely attached to the side of the head in some of us (Figure…2025 · asked 2×
CBSE Class 10 Science past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.