Cellular senescence may have evolved to protect organisms against cancer. Instead of dividing out of control, the cells die. Cellular senescence appears to be regulated by several tumor suppressor genes, especially p53.what is the most appropriate reason behind this,

1) Transcription factor p53 is thought to suppress tumorigenesis by causing cell arrest and senescence in response to short telomeres, DNA damage, and viral or external signals to divide

2) This factor can stop the cell cycle, cause cellular senescence in rapidly dividing cells, instruct genes to initiate cellular apoptosis, and activate DNA repair enzymes.

3) Induction of apoptosis or cellular senescence by p53 always beneficial.

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#Question id: 18011

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

ExPASY  is 

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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: 19696

#SCPH06 I Botany

Different leads are used to record ECG of humans. Which of the following connection shows in recording limb lead I?

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#Question id: 4918

#SCPH12 I Genetics

The two organelles responsible for cytoplasmic inheritance among eukaryotes are

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#Question id: 5075

#SCPH28 | Zoology

Which of the following developmental processes has been most recently completed in the amphibian embryo shown here?