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 ;

TLS Online TPP Program

#Question id: 15709

#SCPH01 Biochemistry

Anti browning compounds helps to reduce toxicity by removing toxic substances produced during the culture and permits unhindered cell growth.

TLS Online TPP Program

#Question id: 2991

#SCPH06 I Botany

Early observations of a cultured cell line indicated that the cells did not exhibit either density-dependent inhibition or anchorage dependence. What do these observations suggest about this cell line?

TLS Online TPP Program

#Question id: 18609

#SCPH01 Biochemistry

An experiment performed using cell for replication and test tube for PCR by using two conditions of radio labelling

1) by radio labeling primer

2) by radio labeling dNTP

 the most possible result will be

TLS Online TPP Program

#Question id: 19136

#I Life Science/ Life Sciences Group – I-V

Which of the following statement is correct about dot matrix?

TLS Online TPP Program

#Question id: 20103

#SCPH05 I Biotechnology

Spontaneous adsorption of a gas on a solid surface is exothermic process because