#Question id: 4574
#SCPH05 I Biotechnology
Ichthyosaurs were aquatic dinosaurs. Fossils show us that they had dorsal fins and tails, as do fish, even though their closest relatives were terrestrial reptiles that had neither dorsal fins nor aquatic tails. The dorsal fins and tails of ichthyosaurs and fish are
#Question id: 753
#SCPH01 Biochemistry
The renaturation of regions of complementarity between different nucleic acid strands is known as___________
#Question id: 10524
#SCPH05 I Biotechnology
Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids, these alkaloids shows;
a) Alkaloids are derived from the tryptophan as constitutively produced defensive secondary metabolites
b) These benzoxazinoids such as DIBOA and its derivative DIMBOA are usually stored in the peroxisome
c) Upon damage, the inactive glycosides are hydrolyzed, generating glucosinolate, which are toxic not only to insect herbivores but also against pathogens
d) DIBOA and DIMBOA perform insecticidal and pesticidal activities
e) It can be inactivated by hydroxylation and N-glycosylation reactions
Which of the following combination is correct about benzoxazinoids alkaloids?
#Question id: 11275
#SCPH06 I Botany
Consumption efficiency is the proportion of production at one trophic level that is eaten by, or ingested, by the next trophic level which of the following are correct statement ?
A.Consumption efficiencies higher in forests than grassland
B-In aquatic ecosystems consuption efficiencies of hervivore are greater than terrestrial hervivore
C- Consumption efficiencies for carnivores are typically higher than those of herbivores
D-Primary production consumption is increased where it is high in nutrients such as nitrogen and phosphorus
#Question id: 832
#SCPH01 Biochemistry
Ubiquitin-protein ligase (E3) are members of two unrelated families, those containing domain known as,