#Question id: 3547
#SCPH12 I Genetics
Ram and Nidhi are apparently normal, but their daughter was born with alkaptonuria, an inherited metabolic disorder. If alkaptonuria is like most human hereditary disorders, the probability of their next child being born with alkaptonuria is
#Question id: 10524
#I Life Science/ Life Sciences Group – I-V
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: 10798
#I Life Science/ Life Sciences Group – I-V
Two other major groups of flavonoids found in flowers
and leaves of all green plants. The function of these two flavonoids in plants
are____
a) protect plants against being eaten by herbivores
and against being infected by microbial pathogens
b)
Protect cells from excessive UV-B radiation (280–320 nm) because they
accumulate in the epidermal layers of leaves and stems and absorb light
strongly in the UV-B region
c)
flavones and flavonols secreted into the soil by legume roots mediate the
interaction of legumes and nitrogen-fixing symbionts
d) They are are coloured terpenoid compounds that also
serve as accessory pigments in photosynthesis
Which of the following combination from the above statements is correct?
#Question id: 7005
#SCPH01 Biochemistry
The primitive streak in a bird is the functional equivalent of :
#Question id: 2673
#SCPH05 I Biotechnology
For a repressible operon to be transcribed, which of the following must be true?