Clonal selection occurs when antigen is encountered by:

TLS Online TPP Program

#Question id: 3435

#SCPH28 | Zoology

You turn on a light and observe cockroaches scurrying to dark hiding places. What have you observed?

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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: 846

#SCPH05 I Biotechnology

The maintenance of the steady-state collection of active cellular proteins required under a particular set of conditions, called ______.

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#Question id: 5426

#SCPH06 I Botany

Which of the following is incorrect regard polygenic inheritance?

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#Question id: 19135

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

Which of the following statements is false when describing SWISS-PROT ?