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;

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#Question id: 5581

#SCPH01 Biochemistry

In humans, an individual with an XXY chromosomal complement will develop as

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#Question id: 15186

#SCPH28 | Zoology

Electrophoretic resolution is achieved by adjusting

A. Current

B. Buffer concentration

C. Chemical nature of Buffer

D. Concentration of supporting media

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#Question id: 660

#I Life Science/ Life Sciences Group – I-V

Computers are used to advance the understanding of three dimensional protein structure by

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#Question id: 20983

#SCPH01 Biochemistry

Which is considered as less recalcitrant out of the BTEX compounds, and of lesser regulatory concern?

1. Xylene

2. Ethylbenzene

3. Toluene

4. Benzene

Which of the below combinations are correct?

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#Question id: 16140

#SCPH06 I Botany

Many mouse genes are “tissue-specific,” that is, they are present throughout the body but are expressed in only one of the animal’s many tissue types. (Other mouse genes are expressed throughout the body, or in multiple tissues.) Geneticists can study the regulation of a mouse gene by fusing the gene’s promoter region to the LacZ coding sequence and injecting the construct to create a transgenic mouse. Fusion of the mouse amylase promoter to LacZ yielded a Pamylase-LacZ construct.

You are surprised to observe that mice homozygous for the transgene insertion display a serious heart defect. (Heterozygotes have normal hearts.) which one is a  possible explanation?

a) LacZ overexpression (with two copies of the transgene) causes the defect.

b) the insertion disrupted a gene that is haploinsufficient.

c) the insertion disrupted a gene that is haplosufficient.

d) LacZ expression inhibition (with two copies of the transgene) causes the defect.

Which of the following statements is correct  predict about the  heart defect?