Oxidation of water to form molecular oxygen is very difficult: The photosynthetic oxygen-evolving complex is the only known biochemical system that carries out this reaction which essential cofactor are involved in the water-oxidizing process?

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#Question id: 9189

#Unit 9. Diversity of Life Forms

A plant will recognize a pathogenic invader

TLS Online TPP Program

#Question id: 11529

#Unit 6. System Physiology – Plant

Mustards and corn contain naturally found auxin is

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#Question id: 21969

#Unit 2. Cellular Organization

Choose the correct statement 

a. Interphase chromosomes occupy chromosome territories in the nucleus and are not entangled with each other

b. Heterochromatic regions, silenced genes, and gene-sparse regions of chromosomes are typically localized to the nuclear periphery

c. Interphase chromosomes occupy chromosome territories in the nucleus and are entangled with each other

d. Heterochromatic regions, silenced genes, and gene-sparse regions of chromosomes are typically localized to the nuclear centre

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#Question id: 29099

#Unit 8. Inheritance Biology

The type of plumage found in mallard ducks is determined by three alleles at a single locus: MR, which encodes restricted plumage; M, which encodes mallard plumage; and md, which encodes dusky plumage. The restricted phenotype is dominant over mallard and dusky; mallard is dominant over dusky (MR > M > md). The expected phenotypes and proportions of offspring is 3/4 restricted, 1/4 mallard by which of the following crosses?

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#Question id: 7512

#General Aptitude

In a stream running at 2 km/h, a motorboat goes 5 km upstream and back again to the starting point in 1 h 20 min. Find the speed of te motor boat in still water.