If A + B means A is the father of B; A −B means A is the brother B; A%B means A is the wife of B and A ×B means A is the mother of B, which of the following shows that M is the maternal grandmother of T?

#Question id: 23326

#General Aptitude

#Question id: 4580

#Unit 11. Evolution and Behavior

In modern terminology, diversity is understood to be a result of genetic variation. Sources of variation for evolution include all of the following except

#Question id: 12028

#Unit 7. System Physiology – Animal

#Question id: 7764

#Unit 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: 9202

#Unit 9. Diversity of Life Forms

Which of the following statements regarding extinction is accurate?