Immediately after putting on a shirt, your skin might feel itchy. However, this perception soon fades due to ________.

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#Question id: 7763

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

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: 1599

#SCPH01 Biochemistry

Name the class of MHC which is recognized by CD4 TH cell.

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#Question id: 14250

#SCPH05 I Biotechnology

A stirred-tank reactor is to be scaled down from 10 m3 to 0.1 m3. The dimensions of the large tank are: Dt = 2 m; Di = 0.5 m; N = 100 rpm. What would be the required rotational speed of the impeller in the small tank if impeller Re number is constant?

______________________

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#Question id: 2309

#SCPH06 I Botany

Membrane-bound compartments in eukaryotic cells are called:

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#Question id: 550

#SCPH05 I Biotechnology

Which of the following statements is false?