Plant Growth and Mineral Nutrition — BIOLOGY STD 12 Science — Question

Identify A, B and C in the following diagram.

Classify the given plant growth regulators as per their specific control of event in plant life cycle in Column A and complete Column B.
(IAA, GA, Cytokinin, Abscissic acid)

Column A	Column B
(1) Shedding of leaves	————
(2) Induce flowering in LDP	————
(3) Apical dominance	————
(4) Induce RNA synthesis	————

Complete the table

Plasmodium species	Incubation period	Pattern of fever
————	————–	High fever after 48 hours.
————–	28 days	————–
————–	17 days	————-
————	————-	High fever at irregular intervals between 22 to 48 hours.

Classify the given disease to their cause given in Column B.
(Ethylene, GA, Deficiency of BO, Deficiency of Cu)

Column A	Column B
(1) Brown heart disease	————
(2) Bakane disease of Rice	————
(3) Die back of shoot	————
(4) Degreening of Banana	————

Draw a labelled diagram of t-RNA carrying Glutamic acid.

Complete the table given below.

Crop	Variety	Insect pest
Brassica	Pusa Gaurav	————-
————-	Pusa sem 2 m Pusa sem 3	Jassids, aphids, fruit borer
Okra	————–	Shoot and fruit borer

Types of traits:
[Sickle-cell anaemia, Widow’s peak, Height in human beings.]

Column A	Column B
(1) Pleiotropy	—————–
(2) Polygenes	—————–
(3) Autosomal dominance	—————–

Classify the following:
i. Alternaria crassa
ii. Agrobacterium spp.
iii. Cactoblastis cactorum
iv. Beavueria bassiana

Column A (Biocontrol agents)	Column B (Host)
Microbial pesticide	————
Mycoherbicide	————
Insect as herbicide	————–
Bacterial herbicide	—————

Types of traits:
[Flower colour of Mirabelis jalapa, Coat colour of cattle, Human blood groups]

Column A	Column B
(1) Co-dominance	—————–
(2) Incomplete dominance	—————–
(3) Multiple allelism	—————–