The plasma membrane around a eukaryotic cell is composed of:

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#Question id: 1718

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

When Langerhans' cells differentiate into fully mature dendritic cells (DCs) they:

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#Question id: 14770

#SCPH01 Biochemistry

Which of the following is a sequence alignment tool?

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#Question id: 1624

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

Acute inflammation can be initiated by:

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#Question id: 7763

#SCPH28 | Zoology

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: 4131

#SCPH05 I Biotechnology

Aminoacyl-tRNA synthetases (amino acid activating enzymes):