If the half life of a first order reaction in A is 2 min, how long will it take A to reach 

(a) 10 percent of its initial concentration?

TLS Online TPP Program

#Question id: 18686

#SCPH05 I Biotechnology

Homology modeling may be distinguished from ab initio prediction because: 

TLS Online TPP Program

#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: 1296

#SCPH28 | Zoology

People with a defect in the synthesis of the integrin β2 subunit exhibit reduced:

TLS Online TPP Program

#Question id: 497

#SCPH05 I Biotechnology

Which of the following statements about the pentose phosphate pathway is incorrect?

TLS Online TPP Program

#Question id: 4598

#SCPH28 | Zoology

Fossils of Thrinaxodon, a species that lived during the Triassic period, have been found in both South Africa and Antarctica. Thrinaxodon had a reptile-like skeleton and laid eggs, but small depressions on the front of its skull suggest it had whiskers and, therefore, fur. Thrinaxodon may have been warm-blooded. The fossils of Thrinaxodon are consistent with the hypothesis that ________.