#Question id: 10522
#Part-B Specialized Branches in Biotechnology
Mechanical barriers
provide a first line of defence against insect pests and pathogens, these
mechanical barriers developed by plants;
|
COLUMN A |
COLUMN B |
|
A. Thorns |
i) It can be found on the stem and petioles of
roses and are formed by the epidermis |
|
B. Spines |
ii) Found on a lemon tree (Citrus sp.) are
modified branches, as can be seen by their position in the axil of a leaf |
|
C. Prickles |
iii) Found on shoot and leaves of tomato (Solanum
lycopersicum) are derived from epidermal cells |
|
D. Trichomes |
iv) which are characteristic of cacti (Opuntia
spp.) in the New World, are modified leaves |
Match correctly following combination of barrier developed by plants ;
#Question id: 10523
#Part-B Specialized Branches in Biotechnology
Conifer resin ducts, which are found in the cortex and phloem, contain a mixture of diverse terpenoids, which are released immediately upon damage by herbivores such as;
a) monocyclic terpenes like- limonene and terpinolene
b) bicyclic monoterpenes- α-pinene and β-pinene
c) tricyclic sesquiterpenes- longifolene, caryophyllene, and δ-cadinene
d) tetracyclic terpenes- longifolene, tetra-terpinolene terpenoids are incorrect?
#Question id: 10525
#Part-B Specialized Branches in Biotechnology
The major cyanogenic glycoside in_____i______ is _____ii______.
a) i-sorghum, ii-Amygdalin
b) i-sorghum, ii-dhurrin
c) i-Cassava, ii-lotaustralin
d) i-Cassava, ii-linamarin
Which one is incorrect combination of cyanogenic glycoside?
#Question id: 10526
#Part-B Specialized Branches in Biotechnology
What is elicitors? Which one is not belongs to the elicitor responses
#Question id: 10527
#Part-B Specialized Branches in Biotechnology
Based on their feeding behaviors, three major types of insect herbivores can be distinguished, which evades the constitutive defense;
A) Phloem feeders i) caterpillars, grasshoppers, and beetles
B) Cell-content feeders ii) aphids and whiteflies
C) Chewing insects iii) mites and thrips
Correctly match the feeding behaviour with its insects;
#Question id: 10528
#Part-B Specialized Branches in Biotechnology
The insect ingests plant tissue containing the fatty acids, an enzyme in the gut conjugates the plant-derived fatty acid to an insect-derived amino acid typically;