#Question id: 1403
#SCPH06 I Botany
Tumor-suppressor genes encode proteins with which of the following functions?
a. growth-promoting b. growth-arresting c. pro-apoptotic
d. anti-apoptotic e. DNA repair
#Question id: 10759
#SCPH05 I Biotechnology
many secondary metabolites have been suggested to have important ecological functions in plants:
a) they protect plants against being eaten by herbivores (herbivory)
b) they protect plants against being infected by microbial pathogens
c) they serve as attractants for pollinators and seed dispersing animals
d) they serve as agents of plant–plant competition
Which of the following combination from above statements is correct?
#Question id: 14332
#SCPH05 I Biotechnology
To ensure turbulent conditions and minimum mixing time during agitation with a turbine impeller, the Reynolds number must be at least 104. A stirred laboratory-scale fermenter with a turbine impeller 5 cm in diameter is operated at 800 rpm. If the density of broth being stirred is close to that of water. The mixing system is scaled up so the tank and impeller are 15 times the diameter of the laboratory equipment. The stirrer in the large vessel is operated so that the stirrer tip speed (tip speed = π N i D i) is the same as in the laboratory apparatus. How does scale-up affect the maximum viscosity.
#Question id: 10549
#I Life Science/ Life Sciences Group – I-V
Following are the list of some of the molecular “danger signals” (column I) and its characteristics (column II)
Column I Column II
a) MAMPs i) produce from the pathogen molecules support their ability to successfully colonize their host and gain nutritional benefits
b) DAMPs ii) A plant response to insect herbivores involve both a wound response and the recognition of certain compounds abundant in the insect’s saliva or regurgitant
c) Effectors iii) are conserved among a specific class of microorganisms such as chitin for fungi, flagella for bacteria
d) Elicitor iv) molecules secrete from the damaging plant by herbivory such as Prosystemin
Which of the following is the correct match between the signals and their respective mechanism?
#Question id: 806
#SCPH05 I Biotechnology
A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which characteristic does this double-stranded molecule have when it forms a B-DNA structure?