#Question id: 366
#SCPH05 I Biotechnology
What is the pH of a solution with a hydroxyl ion (OH-) concentration of 10-10 M?
#Question id: 2282
#SCPH01 Biochemistry
Which of the following organelles is found in plant cells but not in animal cells?
#Question id: 843
#SCPH06 I Botany
_______ enzymes that catalyze isomerization reactions in folding pathways of some proteins.
#Question id: 7764
#SCPH06 I Botany
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: 429
#SCPH28 | Zoology
An organism that uses organic molecules as carbon sources and obtains energy by oxidizing inorganic molecules is a(an) ________.