<h2>The quality and quantity of DNA in cells remain the same from generation to generation.</h2>
Explanation:
- As all organisms depend on their DNA to live, and any changes in the amount or quality of DNA. It will lead to mutations or death of the organism.
- If DNA is changed then it will be difficult for the chromosomes to match up and offspring will not be produced.
- The quality must be maintained. Otherwise other system in the body will not work properly.
Answer:
At a given chiasma, an exchange of genetic material can occur between both chromatids, what is called a chromosomal crossover, but this is much more frequent during meiosis than mitosis. In meiosis, absence of a chiasma generally results in improper chromosomal segregation and aneuploidy.
Explanation:
In the 21st century solar energy is expected to become increasingly attractive as a renewable energy source because of its inexhaustible supply and its nonpolluting character, in stark contrast to the finite fossil fuels coal, petroleum, and natural gas.
Hope this helps
Answer:Restless leg syndrome.
Explanation:
It is characterized with the urge to move the legs.it worsen with age and disturbs sleep.
It can.be caused by iron deficiency, amd chronic diseases e.g diabetes, kidney failure,Parkinson diseases and neuropathy.
