The answer is; B
Mutations change the order of nucleotide and therefore affects codons that code for proteins. A different protein is thus produced from the wild type hence creating variations. Genetic shuffling in sexual reproduction, also called gene recombination occurs during meiosis and also when different organisms exchange genetic material such as in bacteria.
Answer:
B. Plant Growth
Explanation:
The dependent variable is the result in the experiment. It depends on the independent variable to occur. Hence, the word dependent :) In this situation, the light is the independent variable because it is the factor that the experimenter is changing. It is the only thing that the experimenter changes in the experiment. The resulting plant growth is the dependent variable because it depends on the amount of light to grow. Hope that makes sense!
The answer is 200 cells per microliter
Fever, weight loss, and candida infections are symptoms of immunodeficiency. These symptoms only appear if the level of CD4+ count is below normal, resulting in disruption of the immune cells work. The threshold level of CD4 count to cause immunodeficiency symptoms is 200 cells per microliter.
The correct answer is C. This part is called the epithelium.
It is the muscular coat which consists of inner circular and outer longitudinal smooth muscle. Its main work is peristalsis.
To propel urine. The outer layer is the mucosa which has transitional epithelium that continuos with the lining of the renal pelvis and also the urinary bladder.
This layer of its work is to secrete mucus which protects and coats the surface of the cells.
Answer:
The correct answer is A. stabilizing selection
Explanation:
Stabilizing selection is one type of natural selection that occurs when the population having non-extreme traits are stabilized. It results in overexpression of a particular trait in a population. Here most average individual gets selected.
So as the stabilizing selection favors the middle phenotype and not extreme phenotypes it decrease the genetic variation. So here individuals who are having extremely long snout are selected therefore a particular trait is selected and overexpressed in the population. So it is an example of stabilizing selection.
