An unorganised undifferentiated mass of cells.
Callus
Scion
Explant
Stock
Name an organism which has the power of regeneration?
Earth worm
Flat worm
Amoeba
Yeast
An example for natural root propagation.
Carrot
Potato
Onion
Ginger
Asexual reproduction through budding takes place in(i) Amoeba and Yeast (ii) Yeast and Hydra (iii) Hydra and plasmodium (iv) Corals and Sponges
(i) and (ii)
only (ii)
(i) and (iii)
(i) and (iv)
Match Column A (Types of subaerial modifications for vegetative propagation) with column B (Examples) then select the correct answer from the options given:
Column A Column B(Types of subaerial (Example)modification)
(a) Runner 1. Chrysanthemum
(b) Stolon 2. Mentha
(c) Sucker 3. Pistia
(d) Offset 4. Oxalis
(a) -4 ; (b) -3; (c) - 2; (d) -1
(a) -4 ; (b) -2; (c) - 1; (d) -3
(a) -4 ; (b) -1; (c) - 2; (d) -3
(a) -4 ; (b) -2; (c) - 3; (d) -1
Stock and scion are involved in the artificial propagation method known as
tissue culture
layering
grafting
cuttings
Asexual reproduction always involves:
Two parents
Only one parent
Both
None of these
Where are sperms produced ?
scrotum
testes
penis
seminal vesicle
Name the commencement of menstruation at puberty.
menstruation
menarche
menopause
Ovulation
Which of the following method is used in plants having thick branches which cannot be easily bent?
Root cutting
Cleft grafting
Air layering
Mound layering
