Toluene decay by the denitrifying pseudomonas sp. Strain k172 is done. The enzymes involved in degradation pathway are   

1.  Benzyl alcohol dehydrogenase

2.  Benzaldehyde dehydrogenase

3.  Benzoyl-coa synthetase 

Which of the below combinations are correct?

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#Question id: 7763

#SCPH06 I Botany

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: 11458

#SCPH28 | Zoology

A person able to hear only low-frequency sounds would probably have which of the following structural problems in the ear?

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#Question id: 383

#SCPH05 I Biotechnology

Three buffers are made by combining a 1 M solution of acetic acid with a 1 M solution of sodium acetate in the ratios shown below

1 M acetic acid	1 M sodium acetate
Buffer 1: 10 mL	90 mL
Buffer 2: 50 mL	50 mL
Buffer 3: 90 mL	10 mL

 Which of these statements is true of the resulting buffers?

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#Question id: 1290

#SCPH06 I Botany

Hydroxyproline is important in the formation of staple collagen polymers within cells. The formation of hydroxyproline requires:

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#Question id: 7765

#SCPH06 I Botany

The enzyme complex or gene that maintains telomere integrity is________, which acts as an antisenescence complex. Mice and humans with its deficiencies age prematurely (Mitchell et al. 1999). Overexpressing or reactivating it in senescent cells extends longevity in mice without increasing cancer,