A polymorphonuclear neutrophil (PMN):

TLS Online TPP Program

#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: 15755

#SCPH05 I Biotechnology

Cybrids or cytoplasmic hybrids are cells or plants containing

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#Question id: 2092

#SCPH01 Biochemistry

Peripheral membrane proteins

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#Question id: 5539

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

When does neurulation occur during human pregnancy?

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#Question id: 12719

#SCPH06 I Botany

Which of the following is a key enzyme in the proline biosynthetic pathway?