Answer:
D. More bacteria congregated in the red and blue light regions because the algae in those regions produced the most oxygen.
Explanation:
In 1883, Theodor W. Engelmann conducted a classic experiment in which he wanted to help determine the relationship between wavelengths of light and the rate of photosynthesis. We consider that these bacteria congregated in search of the oxygen production, because when they are exposed to light, it is possible for them to produce oxygen through photosynthesis.
The correct answer is option B, that is, electroporation succeeded by recombination.
A usual method of presenting exogenous nucleic acids into cells is known as electroporation. In this, an electric voltage potential is used through a biological membrane, ultimately resulting in the formation of conducting hydrophilic pores. The process of electroporation is utilized for transporting or transfecting nucleic acids generally DNA within the cells, to make them articulate genes that would modify the genetic mechanism.
The transfected DNA can get recombined or incorporated into the host genome or can remain in its own composition. Thus, the process of electroporation straightforwardly permits more recombination to take place.
The key to mitosis occurring is the presence of a nucleus.
Chemical signal can signify the lymphatic, nervous and endocrine system.
Mostly endocrine, the endocrine system is the body system responsible for providing the needed hormones for the body. These hormones and body fluids contribute and catalyse the growth, disposition, sex characteristics and other potential corresponding output of these hormones.
