#Question id: 752
#SCPH05 I Biotechnology
The A260/A280 ratio of a double-stranded DNA sample can be used to assess its purity. The value for the pure DNA is ----------------
#Question id: 10522
#SCPH05 I 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: 4166
#SCPH28 | Zoology
At the ribosome the template mRNA is translated in the __ direction, while the protein is synthesized in the __ direction.
#Question id: 18010
#SCPH01 Biochemistry
#Question id: 27898
#Research Methodology
Reflexivity is: