#Question id: 21738
#Section 5: Bioprocess Engineering and Process Biotechnology
#Question id: 3532
#Section 3: Genetics, Cellular and Molecular Biology
In a plant species, flower color purple is dominant over white. One such purple-flowered plant upon selfing produced 35 viable plants, of which 9 were white flowered and the rest were purple flowered. What fraction of these purple-flowered progeny is expected to be pure purple-flowered line?
#Question id: 14269
#Section 5: Bioprocess Engineering and Process Biotechnology
An activated-sludge waste treatment system is required to
reduce the amount of BOD5 from 1000 mg/l to 20 mg/l at the exit. The
sedimentation unit concentrates biomass by a factor of 3. Kinetic parameters
are µm
= 0.2 h-1 , Ks = 80 mg/l, kd = 0.01 h-1 , and Y M X/S
= 0.5 g MLVSS/g BOD5. The flow of waste water is 10000 l/h and
the size of the treatme nt basin is 50,000 l. What value of the recycle ratio
must be used?
________________________
#Question id: 10536
#Section 6: Plant, Animal and Microbial Biotechnology
Hormonal interactions contribute to plant–insect herbivore interactions such as— ethylene, salicylic acid, and jasmonic acid. In particular, ethylene appears to play an important role in this context, what will be the effect of ethylene when is applied alone and when is applied with other amino acids?
a) ethylene applied together with JA it seems to reduces defense responses
b) Ethylene appears to applied alone to plants, ethylene has little effect on defense-related gene activation
c) when ethylene applied together with JA it seems to enhance JA responses or defense responses are significantly increased
d) Ethylene appears to applied alone to plants, ethylene has more effect on defense-related gene activation
Which of the following combination is correct about ethylene effects?
#Question id: 15645
#Section 4: Fundamentals of Biological Engineering