Answer:
O silicon (Si)
Explanation:
-Valence electrons are electrons of the outermost shell which can participate in chemical bonding. ... -As in silicon, four electrons are present in the outermost shell, so silicon has Four valence electrons.
Answer: Lactic acid fermentation
Explanation:
The lactic acid fermentation can be defined as the process by which sugar is being converted into lactic acid.
There is no emission of carbon dioxide during the whole process. In case of curd formation. The bacteria convert the milk into curd and provides it a sour taste.
It is converted by help of bacteria known as Lactobacillus acidophillus. This method is very frequently in many of food processing industry.
<span>Evolution can best be summed up by statement D - change in a population through genetic variation over time. The other statements do not refer to evolutionary changes, as these are changes that occur slowly, rather than suddely or with speed.</span>
It is a spreadable disease and highly contagious, and communicate very rapidly, so when it first appeared, it was a very difficult task to prevent ourselves from that Hazardous condition. The Scientific name of this bacteria is "MyoBacterium Tuberculae", As it is directly spreads through air means, air is the vector as there's not any insect or external agent for that Job. Could be life threating if proper treatment is unavailable for a Patient. It exerts dangerous symptoms like: "Chills, fatigue, fever, loss of appetite, malaise, night sweats, or sweating". It can be diagnosed through the process of "<span>The Mantoux </span>tuberculin skin test (TST) or the TB blood test" It is performed by injecting a small amount of fluid called tuberculin into the skin in the lower part of the arm. Doctors may prescribe certain Antibiotics to the patient if he's been diagnosed like Isoniazid, Rifampicin, Pyrazinamide, Ethambutol and <span>Streptomycin. By proper care, we can get our control over the disease.
Hope this helps!</span>
Always start with the genotypic ratios, because they'll be the same. Since hidden variation is popping out, you can assume that both of the parents are heterozygous. The problems you get will be the F2 ratio of the cross between two homozygous individuals.
1:2:1 is the genotypic ratio for one locus. AA:Aa:aa.
1:2:1 is the phenotypic ratio for incomplete dominance. Incomplete dominance means that the heterozygote expresses differently from either homozygote.
3:1 is the phenotypic ratio for complete dominance.
2:1 is the phenotypic ratio for lethal recessive.
