BIOLOGY HIGH SCHOOL

Which is an example of pleiotropy?

Answers

Answer 1
Answer: phenylkefonuria, a human disease that affects multiple systems but is caused by one gene defect
Answer 2
Answer:

Answer:

occurs when one gene influences two or more seemingly unrelated phenotypic traits.

Explanation:

thats just what i read so i hope this helps

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The most abundant elements in the body are hydrogen, oxygen, carbon, and _____. calcium sulfur nitrogen boron

Answers

The best answer is nitrogen. After all, it is found in our nucleic acids and proteins. Calcium can be found abundantly in our bones since calcium makes our bones strong. Sulfur can be found in our body but only in low and insignificant amounts. Boron is said to be lethal when taken in great amounts in our body; it can cause diseases and illnesses.

Answer:

nitrogen

Explanation:

Most land mammals have the ability to rest one hemisphere of their brains at a time. Please select the best answer from the choices provideda. True
b. False

Answers

Answer: b. False

Many mammals rests for a large proportion of the 24 hour. The rest period usually extent during hibernation. The marine mammals tend to rest or sleep with only one hemisphere is kept at rest. It allows them to keep one eye open this allows them to stay alert against the predators. But the terrestrial or land mammals when take rest both the hemispheres of the brain sleep.

On the basis of the above description, most land mammals have the ability to rest one hemisphere of their brains at a time is false.
The answer is false, I just took the quiz

Which protein serves as a chemical messenger?hemoglobin
actin
myosin
insulin

Answers

insulin because insulin is what i got on a test i took yesterday

insulin would be your answer.

what molecule is necessary in order for a muscle to contract A. ATP ( active transport ) B. Water C. glucose

Answers

Answer:

ATP

Explanation:

It provides the energy for the contraction of muscles.

In multicellular organisms, life begins as a single cell until ___________ occurs, causing growth.

Answers

mitosis the single cell divides using mitosis so that the organism can grow

Select the point of differentiation between the sporozoites and merozoitesa- The zygote of Plasmodium multiples in the gut of a mosquito forming the merozoites, whereas when merozoites multiply in human liver cells, they form spores called sporozoites.
b-The zygote of Plasmodium multiples in the gut of a mosquito to form sporozoites, whereas when sporozoites multiply in human liver cells, they form spores called merozoites.
c-The zygote of Plasmodium multiples in human liver cells forming the merozoites, whereas when merozoites multiply in the gut of a mosquito, they form spores called sporozoites.

Answers

"The zygote of Plasmodium multiples in the gut of a mosquito to form sporozoites, whereas when sporozoites multiply in human liver cells, they form spores called merozoites" is the point of differentiation between the Sporozoites and merozoites. The correct option among all the options given in the question is option "B". 

Answer:

The answer is B: "The zygote of Plasmodium multiples in the gut of a mosquito to form sporozoites, whereas when sporozoites multiply in human liver cells, they form spores called merozoites."

Explanation:

In Plasmodium, for example, the sporozoites are cells that produce in the mosquito's salivary glands, leave the mosquito during a blood meal, and drive liver cells (hepatocytes), where they generate. Cells infected with sporozoites ultimately burst, delivering merozoites into the bloodstream.  Merozoites are non-motile.A merozoite is a daughter cell of a protozoan parasite. Merozoites are the consequence of asexual propagation. Sporozoites are designed by sporogony, a type of sexual or asexual reproduction by multiple fission of a spore or zygote, representative of many sporozoans.

Hope I helped ya.

< Sarah >
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