8 Single-stranded DNA (ssDNA) and repair
9 The history of DNA research ... canon ".
Single-stranded DNA (ssDNA) and repair
In some viruses DNA appears in a ... single-stranded form. Because many of the DNA repair
mechanisms of cells work only on paired bases, ...
... immune protection, bone density and strength
and development of all of the organism’s ... protein and energy to enable high performance and repair
for the high stresses on their body. People ... of good nutrition in terms of body maintenance, repair
and functioning will be often relative to the ...
... to revolutionize medicine , enabling doctors to repair
specific tissues or to grow organs .
... cells have been recently used to successfully repair
a large cranial defect in a human patient  .
Adult stem cells are also apparently able to repair
muscle damaged after heart attacks . Heart ...
... conditions related to chromosome Y
of the Y chromosome
4 Y chromosome in ... features of these conditions are variable.
of the Y chromosome
Chromosomes have robust and accurate repair
mechanisms. Over time random mistakes - mutations ...
... the event of a broken bone, the cells are brought out of semi- stasis to repair
Matrix comprises the other major constituent of bone. It has ... throughout a person's life. Its purpose is the release of calcium and the repair
of micro-damaged bones (from everyday stress). Repeated stress results in ...
... has the potential to harm healthy tissue, especially those tissues that have a high replacement rate (e.g. intestinal lining). These cells usually repair
themselves after chemotherapy.
Because some drugs work better together than alone, two or more drugs are often given at the same time. This is ...
... or warm-blooded animal will use up to 98% of its energy for heat production, an ectotherm has all this energy available for activity, growth, repair
Types of temperature control
Examples of this temperature control include:
Snakes and lizards sunning themselves on ...
... are usually chemical compounds or radiation .
The Ames test is one method to determine how mutagenic an agent is.
... such as fatigue, insulin resistance, hair loss, loss of hair pigment (hair that should be black becomes reddish), loss of muscle mass (proteins repair
muscle tissue), low body temperature, and hormonal irregularities. Severe protein deficiency is fatal.
Excess protein can cause problems as well, ...
... a tumor to emerge. Mutations that activate oncogenes or repress tumor supressor genes can eventually lead to tumors. Cells have mechanisms that repair
DNA and other mechanisms that cause the cell to destroy itself by committing apoptosis if DNA damage gets too severe. Mutations that repress the ...