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;

#Question id: 2510

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following cytoskeletal components is not found in all eukaryotic cells?

#Question id: 2527

#Section 3: Genetics, Cellular and Molecular Biology

Transpirational water flow in the xylem requires a mechanically strong wall that resists from,

#Question id: 2531

#Section 3: Genetics, Cellular and Molecular Biology

The specific linkages between sugar rings, including the specific carbons that are linked together and the configuration of the linkage, are important for the properties of the polysaccharide;

 I) Amylose                             a)β(1,3)-linkages                                  

 II) Cellulose                            b) β (1,4)-linkages

  III) Callose                             c) α(1,4)-linked

                                                 d) α (1,3)-linkages

Which of the following linkage combination is correct linkages of the polysaccharides?

#Question id: 2539

#Section 3: Genetics, Cellular and Molecular Biology

Which structure is common to plant and animal cells?

#Question id: 2604

#Section 3: Genetics, Cellular and Molecular Biology

Best inducer of the lac operon;

#Question id: 2608

#Section 3: Genetics, Cellular and Molecular Biology

Which amino acid is involved in last step;