Answer:
B. differential
Explanation:
The culture medium is a chemical preparation that has the necessary nutrients for microorganisms of a given biological sample to multiply, allowing its study, identification and analysis. The main components of a culture medium are sources of carbon, energy (sugars), nitrogen, phosphorus and minerals.
There are several types of culture medium, among them we can mention the differential culture medium, which is the type of medium that is being used in the experiment shown in the question above. The differential culture medium allows the distinction between various genera and species of similar microorganisms. This distinction is possible because this type of culture medium has substances that allow for a presumptive differentiation, evidenced by the color change or the morphology of the colonies.
The greatest volume of blood is found in veins
Answer:
The first blank can be correctly filled up with proteins.
Proteins are complex molecules which play many crucial roles in the body such as structural role (actin, myosin, keratin), movement, metabolism (enzymes), signal transduction, transport, and defense. In addition, they also determine many traits of the body as they are the last result of the gene expression.
The second and third blanks can be correctly filled up by DNA (deoxyribose sugar).
DNA is the genetic material in most of the organisms including humans. It contains all the information or blueprint for the synthesis of proteins which in turn help in determining the traits of a person.
The last blank can be filled up by the gene.
A gene refers to the unit of heredity which is present on the chromosome. It refers to the protein coding region of the DNA.
Answer: Alveolar surfactant
Surfactant Alveolar
is a type of substance secreted by pneumocytes II (one type of cell that forms the epithelium in the alveolar membrane). This substance is known as an tensioactive agent, decreasing the surface tension within the alveoli.
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Translocations may be balanced when there is an even exchange of material with no genetic information extra or missing, and ideally full functionality. Or can be unbalanced where the exchange of chromosome material is unequal resulting in extra or missing genes. For example a child who has an unbalanced translocation may have learning disabilities, developmental delay and health problems. The seriousness of the disability depends on exactly which parts of which chromosomes are involved and how much missing or extra chromosome material present.
