Answer
The first significant supporting evidence for a biological cause of a mental disorder was the 19th century discovery that the psychotic disorder called general paresis was caused by the same bacterial microorganism that causes <u>syphilis</u>.
Syphilis
Syphilis is caused by bacteria “<em>Treponema pallidum</em>”. This bacteria cause infection when enter through broken skin of mucus membrane of genitals. It is sexually transmitted disease.
General paresis
When syphilis is untreated it lead to damaging of brain and cause a disease called general paresis in which mental activity become dysfunctional. The syphilis bacteria generally attack on brain and nervous system and begin about 10-30 years after syphilis infection.
Ans.
Memory cells of immune system are present in G0 phase, in which these cells are not activated or responding for a pathogen.
The cell-cycle is defined as the series of events that lead to DNA duplication and division of a cell to form daughter cells. The cell cycle is divided into interphase and M phase.
The interphase includes gap 1 (G 1) phase, S or synthesis phase, and gap 2 (G 2) phase, while M phase includes karyokinesis and cytokinesis.
The cells after M phase either goes for next cell division or G1 phase or for G 0 (gap 0) phase. The G0 phase is resting phase, in which cells show a quiescent state.
As memory cells are present in resting phase, till the next exposure of same antigen, these cells are in G0 phase of cell cycle.
Answer:
It's actually B that guy is wrong on Edge.
Explanation:
From periodic table: Lithium, beryllium, boron, carbon, sodium, magnesium, aluminum, silicon, potassium, calcium, titanium, copper, iron , nickel, cobalt, manganese, zinc, germanium, arsenic, gallium, technetium, and etc....
Answer:
A gene mutations can be defined as the permanent alteration in the sequence of the DNA that makes the gene. Gene mutation may give rise to genetic variations or from the genetic recombination. These variations are known to alter the gene activity and the function of the protein. These variations in the protein or gene activity give rise to different traits in an organism.
If the trait is beneficial and helps the organism to survive and reproduce, such variation is likely to be passed to the next generation.
