1. Dryopteris
2. Salvinia
3. Adiantum
4. Equisetum
1. Chorion
2. Allantois
3. Yolk sac
4. Amnion
1. achenes
2. samaras
3. berries
4. mericarps
1. Bacterial leaf blight of rice
2. Downy mildew of grapes
3. Loose smut of wheat
4. Black rust of wheat
1. autogamy, but not geitonogamy
2. Both geitonogamy and xenogamy
3. geitonogamy, but not xenogamy
4. autogamy and geitonogamy
1. shoot apical meristem
2. position of axillary buds
3. size of leaf lamina at the node below each internode
4. intercalary meristem
Which one of the following is the correct difference between rod cells and cone cells of our retina?
Features | Rod cells | Cone cells | |
(a) | Visual acuity | High | Low |
(b) | Visual pigment contained | Iodopsin | Rhodopsin |
(c) | Overall function | Vision in poor light | Colour vision and detailed vision in bright light |
(d) | Distribution | More concentrated in centre of retina | Evenly distributed all over retina |
1. a
2. b
3. c
4. d
1. GUU, GCU - Alanine
2. UAG, UGA - Stop
3. AUG, ACG - Start/methionine
4. UUA, UCA -Leucine