A committee of 5 members is to be formed out of 6 men and 4 women. In how many ways can a committee consisting of atleast 1 woman be formed?
⁶C₄ × ⁴C₁ + ⁶C₃ × ⁴C₂ + ⁶C₂ × ⁴C₃ + ⁶C₁ × ⁴C₄ = 15 × 4 + 20 × 6 + 15 × 4 + 6 × 1 = 60 + 120 + 60 + 6 = 246 Alternate Method: ¹⁰C₅ - ⁶C₅ = (10 ×9 ×8 ×7 ×6 )/(5 ×4 × 3 × 2) - ⁶C₅ = 252 - ⁶C₅ = 252 – 6 = 246
When the leaflets are joined together at a common point at the petiole, the type of leaf is
The gynoecium occupies the highest position while the other parts are situated below it. Which type of flower is that?
In monocotyledonous seeds the outer covering of endosperm separates the embryo by a proteinous layer called as
Pea, gulmohur, bean, Cassia have ___ type of symmetry and hance they are ____ flowers.
Photosynthesis occurs in which cell organelle of the plant?
Manures are categorised into bulky and concentrated organic manure. An example of Concentrated organic manure is
More incidence of fruit cracking in pomegranate takes place in which season?
The monocotyledonous plants can be distinguished from dicotyledonous plants by:
The organelle responsible for protein synthesis in plant cells is the:
Pungency in radish is due to the presence of
