GATE XL 2020 Paper 1 — page 20

Questions 58–60 of 125. Imported answers require review unless explicitly marked reviewed.

In relation to Agrobacterium mediated genetic engineering in plants, match the following in CORRECT combination

Gene name: P. virA; Q. virB; R. virD1; S. virG

Function: i. Acetosyringone receptor; ii. Conjug tube formation; iii. Topoisomerase; iv. Inducer of all vir operons; v. Octopine synthesis

Your answerChoose one option.

P-iv, Q-iii, R-ii, S-v

P-ii, Q-i, R-iii, S-v

P-i, Q-ii, R-iii, S-iv

P-iii, Q-i, R-ii, S-iv

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Match the plant part (Group I) with the product obtained (Group II) and the representative plant species (Group III) in CORRECT combination.

Group I

P. Bark

Q. Leaf

R. Flower

S. Fruit

Group II

i. Tannins

ii. Saffron

iii. Codeine

iv. Aromatic oil

Group III

Papaver somniferum

Camellia sinensis

Cinnamomum zeylanicum

Crocus sativus

Your answerChoose one option.

P-ii-1, Q-i-3, R-iv-2, S-iii-4

P-ii-1, Q-i-2, R-iv-4, S-iii-3

P-ii-2, Q-iv-3, R-i-4, S-iii-1

P-iv-3, Q-i-2, R-ii-4, S-iii-1

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Select the CORRECT combination by matching the disease, causal organism and the affected plant.

Disease	Causal organism	Affected plant
P. Stem rust	i. Cercospora personata	1. Wheat
Q. Wart disease	ii. Plasmopara viticola	2. Ground nut
R. Tikka/leaf spot	iii. Synchytrium endobioticum	3. Potato
S. Downy mildew	iv. Puccinia graminis	4. Grape
		5. Apple
		6. Rice

Choose the CORRECT combination:

Your answerChoose one option.

P-iv-1, Q-iii-3, R-ii-2, S-ii-4

P-ii-1, Q-i-6, R-iv-4, S-iii-2

P-iii-1, Q-iv-3, R-i-5, S-ii-4

P-iv-1, Q-ii-3, R-iii-2, S-i-5

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2020 · Paper 1

Question 13

Question 14

Question 15