Answer:
--Block immune cells from crossing the blood brain barrier.
--Stimulate the regeneration of myelin.
Explanation:
Multiple sclerosis or shortly known as MS is an unpredictable disease caused in the humans. Multiple sclerosis affects the central nervous system of our brain which causes the disruption in the flow of the information within our brain, and between our brain and the body.
It is a very rare disease.
The symptoms of MS may vary and includes double vision, weakness, fatigue, impaired coordination, pain, etc. Though there is no permanent cure for MS but scientist and doctors around the world suggest that by blocking the immune cells and stopping them from crossing our blood brain barrier can prevent this disease.
Multiple sclerosis can also be prevented by stimulating the myelin to regenerate.
Answer: D) directional selection
Explanation:
The characteristics of the poppies shifted in response to the changed environment.
Answer:
heterozygous purple pea plant and heterozygous purple pea plant
Explanation:
Suppose the gene controlling flower colour in pea is P. Allele P is dominant over allele p. So, PP and Pp produce purple flowers and pp produces white flowers. If two heterozygous purple pea plants (Pp) are crossed :
Pp X Pp :
P p
P PP Pp
p Pp pp
As evident, the progeny will have genotypic ratio of 1 : 2 : 1 ( PP : Pp : pp ) and phenotypic ratio of 3 : 1 ( Purple : white )
Hence two heterozygous purple pea plants will produce 3:1 ratio of purple to white pea plants.
Answer:
The GR is expressed in almost every cell in the body and regulates genes controlling the development, metabolism, and immune response.
Explanation:
<span>Endospore is a protective structure that can
able to survive for long periods of time in soil and water in which they commonly
found. They are tough, dormant and non-reproductive structure which can
withstand heat, dryness, and toxic chemicals that would kill most other
bacteria produced by a small number of bacteria like the bacterium Bacillus
thuringiensis from the Firmicute family. To ensure the survival of a bacterium
through periods of environmental stress is the primary function of most
endospores. They are also resilient to gamma and ultraviolet radiation, chemical
disinfectants, desiccation, starvation, lysozyme and temperature and can survive any environmental assaults.</span>
