Answer: B. Smoking not only produces negative effects on human health but also on the environment.
Answer:
The correct answer is b a mutation in a gene that codes for protein regulating cell division.
Explanation:
Cancer is a disease that result due unregulated cell divison.There are many tumor suppressor protein present in our body such as retinoblastoma tumor suppressor protein,p53 protein.
These tumor suppressor protein helps to carry out cell divison in a regulated fashion and send signal for division only to that cell that have undamaged DNA.
Mutation in the gene encoding tumor suppressor protein leads to development of cancer.
The general shape of the epithelial cells that are nearest
to the lumen during an empty urinary bladder of an individual is transitional
cuboidal epithelium, they are cuboidal in shape as they are relaxed and later
transition when stretched and filled with urine.
Period marks the end of one menstual......
