Patent ductus arteriosus occurs when the normal fetal circulation conduit between the pulmonary artery and the aorta fails to close and results in increased pulmonary blood flow. The clinical manifestations of patent ductus arteriosus include; Murmur; wide and bounding pulse pressure, Asymptomatic Heart failure.
Answer:
Explanation:
Hardy Weinberg equation is presented below and describes that in a population the frequency of alleles ad genotypes will remain static or the same in the absence of evolutionary disturbances such as mutation, migration ( gene flow), natural selection and with the population large and random mating
p² +2pq + q²
where p represents the frequency of the dominant alleles
q represent the frequency of the recessive alleles
p² represent the frequency of the dominant homozygous genotype
q² represent the frequency of the recessive homozygous genotype
2pq represent the frequency of the heterozygous genotype
q² also represent the frequency of the recessive phenotype
(p² + 2pq) represent the frequency of the dominant phenotype
Constants never change.
Controls typically don't change or they are done by standard means
(like in an experiment where you water plants with sodas, the plant you use water with is the control)
Dependent variables are the outcome of the experiment. This is the result of changing something.
Independent variables are what you are testing. A independent variable is something that is intentionally altered.
easy way to remember it is that dependent variables depend on what other variables are. so you cant change a dependent variable, but you can change the other variables.
Base substitutions
deletions
insertions
duplication
missense
repeat expansion
True: Because soccer fields need large areas or spaces and a town with already built houses would not suffice. In turn, the open available areas with trees and wildlife will be destroyed and mountains will be quarried and forcefully flattened to pave way for the fields. Soil erosion will happen because this will cause an imbalance on mountains, diverting the flow of the water to the low lands without trees seeping it. In addition, when these fields are already made, maintenance must also be sustained such as making the grass greener and healthier by putting pesticides and routine watering of soil to keep its moist which will alter the natural soil quality.
