The colored pigments of plants are of two principal types: carotenoids and flavonoids. Given below some statements of about these pigments;

 a) Anthocyanins are colored flavonoids that attract animals

b) Flavonoids are phenolic compounds that include a wide range of colored substances

c) Carotenoids are coloured terpenoid compounds that also serve as accessory pigments in photosynthesis

d) most widespread group of pigmented carotenoids is the anthocyanins, these are glycosides that have sugars. Without their sugars, anthocyanins are known as anthocyanidins

Which of the following is incorrect statements of these pigments;

TLS Online TPP Program

#Question id: 4418

#Unit 3. Fundamental Processes

Histones in repressed regions near telomeres and at the silent mating loci are hypoacetylated, confirmed by using

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#Question id: 1444

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a proto-oncogene?

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#Question id: 2403

#Unit 2. Cellular Organization

In autotrophic bacteria, where is chlorophyll located?

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#Question id: 31312

#Unit 3. Fundamental Processes

IRESs are RNA sequences function like 

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#Question id: 12996

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is incorrect regarding to α-helix

a) In the α helix, the first four NH groups and last four CO groups will normally lack backbone  hydrogen bonds.

b) the length of an amino acid in α-helix reduced almost 3 times than linear structure.

c) the frequent occurrence of Pro and Gly residues favour α-helix formation.

d) dihedral (ϕ and ψ) angle should be close to -57 and -47.