#Question id: 7764
#5. Developmental Biology
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.
#Question id: 5449
#8. Inheritance Biology
Most behavioral traits are affected by many different genetic influences as well as environment. The best descriptor for such traits is:
#Question id: 12760
#10. Ecological Principles
#Question id: 10581
#10. Ecological Principles
Life-history characteristics associated with K-selected organisms include
#Question id: 17812
#7. System Physiology – Animal