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 ;

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#Question id: 11856

#Part-A Aptitude & General Biotechnology

Find the least number which when divided by 5 , 7 , 11 leaves reminders 1 , 2 , 4 respectively.

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#Question id: 11857

#Part-A Aptitude & General Biotechnology

Find the least number which when divided by 5 , 7 , 11 leaves reminders 1 , 2 , 3 respectively.

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#Question id: 11858

#Part-A Aptitude & General Biotechnology

A, B and C start at the same time in the same direction to run around a circular stadium . A completes a round in 252 seconds , B in 308 seconds and C in 198 seconds all starting at the same point . After what time will they meet again at the starting point ?

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#Question id: 11859

#Part-A Aptitude & General Biotechnology

Six bells commence tolling together and toll at intervals of 2,4,6,8,10,and 12 seconds respectively . In 30 minutes , how many times do they toll together ?

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#Question id: 11860

#Part-A Aptitude & General Biotechnology

The traffic lights at three different road crossing change after every 48 sec , 72 sec, and 108 sec. Respectively . If they all change simultaneously at 8 : 20 : 00 hours , then at what time will they again change simultaneously ?

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#Question id: 11861

#Part-A Aptitude & General Biotechnology

Four metal rods of lengths 78 cm , 104 cm , 117 cm and 169 cm are to be cut into parts of equal length. Each part must be as long as possible . What is the maximum number of pieces that can be cut ?