<h2 /><h2>In situ hybridization</h2>
Explanation:
A)the cellular and tissue specific localization of the mRNA encoded by a particular gene
- In situ hybridization is a technique used to locate and detect nucleic acid sequences(DNA or RNA) with respect to their protein product within nuclei
- The principle behind in situ hybridization is that specific annealing(heat treatment process) of labelled probe to complementary sequences of target DNA or mRNA in a fixed specimen is done
- Probe is mainly used to find the complementary sequence of the nucleic acids(DNA or RNA) or helps in localization of particular clone
- The detection and visualization of the hybrids can be done by using cytological methods
Treatment
Meningitis is an infection of the membranes, meninges that surrounds and protects the central nervous system (the brain and spinal cord). Bacterial meningitis must be treated immediately with intravenous antibiotics and sometimes corticosteroids and, of course, the antibiotic depends on the type of bacteria causing the infection.
Prevention
First of all, to prevent the spread of bacterial meningitis it is important to practice good hygiene, such as frequent handwashing. Since the factors that increase the risk include spending time in communities (school, campus or college) because it spreads easily, children should be aware and vaccinated. As several types of bacteria can cause bacterial meningitis, a range of vaccines is wide (e.g. meningococcal vaccine, Hib vaccine).
The correct answer iare A. All organisms have had one common ancestor in the past, and C. Gorillas share an extinct ancestor with bonobos.
Explanation
The image shows an evolutionary tree that resulted in species such as the chimpanzee, orangutan, gorilla, bonobo, and humans. This tree shows nodes, which are the points shown on it. These nodes represent an extinct species as a common ancestor of the species of the next node that are connected to it. Therefore, the correct answers are A. All organisms have a common ancestor in the past, this statement is true because all the species shown in the tree are the result of different divisions of a first species that lived 13 million years ago. The second correct statement is C. Gorillas share an extinct ancestor with bonobos. Because in the graph it can be seen that 6 million years ago there was a node/species that is the common ancestor of the gorilla and the bonobo.
