1. auxins
2. ethylene
3. cytokinin
4. gibberellins
cytokinin
1. 3 ATP and 3 NADPH2 molecules
2. 3 ATP and 2 NADPH2 molecules
3. 2 ATP and 1 NADPH2 molecules
4. 1 ATP and 2 NADPH2 molecules
3 ATP and 2 NADPH2 molecules
1. Zeatin
2. Indole acetic acid
3. Ethylene
4. Naphthalene acetic acid
Ethylene
1. copper
2. manganese
3. magnesium
4. calcium
magnesium
1. fusion of 4 or more polar nuclei and the second male gamete only
2. fusion of 2 polar nuclei and second male gamete only
3. fusion of one polar nucleus and second male gamete only
4. all the above type of fusions in different types of angiosperms
fusion of 2 polar nuclei and second male gamete only
1. high energy bonds are formed in mitochondrial proteins
2. ADP is pumped out of the matrix into the intermembrane space
3. a proton gradient forms across the inner membrane
4. there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP)
a proton gradient forms across the inner membrane
1. Malvaceae — Cotton
2. Leguminosae — Mango (or Sunflower)
3. Cucurbitaceae — Orange
4. Brassicaceae — Wheat
Malvaceae — Cotton
1. Megaspore mother cell and antipodal cells
2. Egg cell and antipodal cells
3. Nucellus and antipodal cells
4. Egg nucleus and secondary nucleus
Egg cell and antipodal cells
1. autogamy, but not geitonogamy
2. Both geitonogamy and xenogamy
3. geitonogamy, but not xenogamy
4. autogamy and geitonogamy
autogamy, but not geitonogamy
1. It helps in the entry of pollen tube into a synergid
2. It prevents entry of more than one pollen tube into the embryo sac
3. It brings about opening of the pollen tube
4. It guides pollen tube from a synergid to egg
It helps in the entry of pollen tube into a synergid