DNA from Salmonella species, when digested with the restriction enzyme Xba I, gives around 15 fragments ranging from 25 kb to 680 kb This pattern of fragments, or ‘fingerprint’, is unique to that strain. If the same fingerprint is found from bacteria from other infected people, then it can be assumed that they were all infected from a common source. Thus, by comparing their eating habits, food sources, etc. the source of the infection can be traced to a restaurant, food item. The fingerprints are created and analysed by

#Question id: 11129

#SCPH28 | Zoology

Which of the following statements concerning the neuronal membrane at rest is correct?

#Question id: 9052

#SCPH06 I Botany

Which of the following causes seasons on Earth?

#Question id: 27823

#Research Methodology

In a research study, if a correlation coefficient between two variables is -0.75, what does this value indicate?

#Question id: 5057

#SCPH01 Biochemistry

The major factor which is important in providing the competence for the ectoderm to respond to the inducers from the optic cup-

#Question id: 10524

#SCPH06 I Botany

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?