A. there is a change in Genetic frequency
Nitrogenous base, sugar and phosphate
The correct answer is option C, Conjugation
During conjugation the genetic material is transferred between two bacteria through a bridge like connection. In this was the bacteria acquires the resistance to the antibiotic methicillin
Typhoid fever is most common in non-industrialized countries. Travelers to Asia, Africa, Eastern Europe, and Latin America are especially at risk. Salmonella typhi bacteria are shed in the urine or stool of infected persons, including chronic carriers. There are no known animal reservoirs for typhoid fever.
<span>Spermatozoa are the mature male gametes in many sexually reproducing organisms. Thus, spermatogenesis is the male version of gametogenesis, of which the female equivalent is oogenesis. In mammals it occurs in the seminiferous tubules of the male testes in a stepwise fashion.</span>
