Two major sources of mutation are radiation and reactive oxygen species (ROS).The reactive oxygen species hypothesis for aging postulates that 

1) Senescence results from the accumulation of DNA, lipid, and protein damage inflicted by ROS of mitochondrial origin; and

2) Mitochondria of long-lived species should produce high ROS than do mitochondria of short-lived species.

3) the capacity of mitochondria to consume ROS might distinguish long-lived species from short-lived species, rather than differences in ROS generation. 

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#Question id: 15228

#SCPH06 I Botany

Capillary electrophoresis (CE) is based on principle of 

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#Question id: 122

#SCPH05 I Biotechnology

An unknown lipid is treated with a mixture of phospholipases A1, A2, C and D. Since no glycerol is formed after this treatment, the lipid is most likely

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#Question id: 3441

#SCPH28 | Zoology

Animals tend to maximize their energy intake-to-expenditure ratio. What is this behavior called?

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#Question id: 16492

#SCPH28 | Zoology

Upstream elements on the other hand regulates the activity of gene action are

A. Enhancer sequences

B. Silencer sequences

C. Termination sequences

D. Signal sequences

Mark the option with correct combination

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#Question id: 15899

#SCPH05 I Biotechnology

Somatic embryos (SEs) regenerate from the tissues of other SEs or the parts of germinating SEs; such SEs are called