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: 828

#SCPH28 | Zoology

Which of the following assistance have function to lift folding polypeptides out of the false minima in their folding funnels?

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#Question id: 15711

#SCPH01 Biochemistry

For the regeneration of a whole plant from a cell or callus tissue, there should be differentiation leading to shoot bud or embryo formation. This may occur through 

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#Question id: 8857

#SCPH28 | Zoology

Which chemical is synthesized by some sponges and acts as an antibiotic

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#Question id: 1589

#SCPH28 | Zoology

Which of the following is a characteristic of the early stages of local inflammation?

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#Question id: 3513

#SCPH01 Biochemistry

RR- red, Rr- pink, rr- white flower color in plant. Pink flower plant allowed to repeated self fertilization up 3 generation. The proportional of pink flower is