BIOLOGY COLLEGE

The issue of high cholesterol can sometimes run in families. If an individual has two normal alleles, then he is phenotypically normal. Individuals having both recessive alleles for this condition leads to zero production of receptors that remove cholesterol from blood. However, individuals who are heterozygous produce half the number of receptors necessary to remove cholesterol from the blood. This is a good example of A) epistasis.

B) complete dominance.

C) incomplete dominance.

D) codominance.

Answers

Answer 1
Answer: In the case of the gene that determines high cholesterol in the blood, the two alleles express incomplete dominance.
What this means is that the dominant allele is not completely dominant over the recessive allele. If the allele was completely dominant, even one allele would be enough to determine the individual's trait as dominant. But in the case of incomplete dominance between the alleles, the heterozygous individuals that have one dominant and one recessive allele are an ''in between'' phenotype.
Answer 2
Answer: The answer would be incomplete dominance

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HIGH SCHOOL

Which part of a scientific argument must be supported by valid data

Answers

The answer is valid data. A scientific argument utilizes confirmation to present a defense for whether a logical thought is precise or erroneous. The desires created by a logical thought and the genuine perceptions significant to those desires from what we'll call a logical contention.
Evidence is that part of any scientific argument which must be supported by valid data. Any scientific argument is supported by evidences to make sure that the arguement is accurate or not. Based on the observations and the data, any argument is said to be scientifically valid.
MIDDLE SCHOOL

Which length is usually measured in micrometers?

Answers

Micrometre, also called micron, metric unit of measure for length equal to 0.001 mm, or about 0.000039 inch. Its symbol is μm. The micrometre is commonly employed to measure the thickness or diameter of microscopic objects, such as microorganisms and colloidal particles.
MIDDLE SCHOOL

Some jellyfish have skeletons that are formed by fluid-filled compartments. This fluid resists compression and thus supports the body structure from deforming. Which term describes these skeletons? A. Fluid skeletons B. Hydrostatic skeletons C. Exoskeleton D. Endoskeleton

Answers

Answer:

B. Hydrostatic skeletons

Explanation:

A hydrostatic skeleton is a fluid-filled skeleton that is present in many invertebrates that have soft bodies. Some of the jelly fishes are among them. The hydrostatic skeleton of jelly fishes can be compressed as it is filled with fluid.

However, it can regain the original shape once the pressure is removed. The ability of hydrostatic skeleton to be compressed and to regain the original shape help these jellyfishes to resist deformation of the body.  

Answer:

B. Hydrostatic skeletons

Explanation:

MIDDLE SCHOOL

What is the purpose of a conclusion in the scientific method

Answers

The conclusion is the gathering and understanding of the data that has been collected
HIGH SCHOOL

In subduction zones, dense pieces of oceanic crust are pulled downward toward the mantle. Which of the following forces drives this process?

Answers

Force of gravity drives to the process of subduction zones where dense pieces of oceanic crust are pulled downward toward the mantle.
We can term subduction as the process by which oceanic crust sinks into the mantle when it collides with continental crust. Subduction destroys oceanic crust by forcing it to the mantle where it melts.
Oceanic crust is said to be subducted because they contain more mafic minerals and again it has convergent boundaries. When there is a divergent between continental crust one oceanic crust sinks into the mantle.

The answer would be gravity

COLLEGE

Which of the findings listed below support the dopamine hypothesis? amphetamines decrease dopamine and produce the positive symptoms of schizophrenia. amphetamine-induced psychosis is less likely in persons with a genetic predisposition for schizophrenia. drugs that block the effects of dopamine in the brain reduce or eliminate symptoms of schizophrenia. amphetamines decrease dopamine and can produce the negative symptoms of schizophrenia?

Answers

The dopamine hypothesis of schizophrenia is a structure, accrediting indications of schizophrenia to a distressed and agitated dopaminergic indicator transduction. The growth of enriched antipsychotic medicines was directed by a hunt for dopamine blockers founded on the notion that schizophrenia is, partly, a hyperdopaminergic state. So from the choices given above, it can be concluded that, drugs that block the effects of dopamine in the brain reduce or eliminate symptoms of schizophrenia.

HIGH SCHOOL

Once a person is infected, which one of these sexually transmitted infections (stis) remains in the body for life, regardless of treatment

Answers

Herpes is the answer.

Hope it helped!
COLLEGE

Which of these diseases does NOT require the introduction of foreign nucleic acid? kuru
polio
rabies
St. Louis encephalitis

Answers

Answer: Kuru

Explanation:

Kuru are transmitted by prion. This diseases are untreatable and ultimately fatal.

Prions are infectious proteinaceous particle that are neither virus nor do they contain nucleic acid.

They are transmitted by ingestion of the infected nervous system tissues.They are normally found in the healthy brain tissues if this protein is mis-folded into denatured form it can cause disease.

HIGH SCHOOL

Molecules move from greater to lesser concentration through a transport protein in

Answers

Facilitated diffusion

The word 'diffusion' means free movement across distance, with or without the presence of a barrier. However, there is a phenomenon known as facilitated diffusion which occurs at the cellular level. The cell does not allow free radicals and other harmful substances to enter and harm the cell organs. This is possible due to the structure of the cell membrane. The structure is such that, it allows only certain things to pass in and out of the cell. One such activity that allows selective movement in and out of the cell is the process of facilitated diffusion.

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