Multicellular organisms can be organized into what other levels?

1 answer:

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Cells are the fundamental unit of life, grouped through a series of organization. As basic histology explains the primal hierarchy between each organized organism has basic unit called cells. Cells when grouped form tissues, when group of tissues are formed together they make organs, some organisms skip from organs to organs systems to form an existing organism as a whole. Describing how is the cells group is the process of multiplication of cell or the so-called cell division, mitosis. This mechanism of each cell produces another cell that binds together and produces again, repeatedly, to be a larger system called now the tissue as explained earlier. How? Through cell division called, mitosis. Excerpt meiosis –cell division specifically in the sex cells.

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If an analogy were to be made between the function of different cell organelles and the services provided by different companies

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What is the difference between a dominant trait and a recessive trait?

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Dominant- determines the dominant character, more frequently found in the population, produces the complete polypeptide, does not require the presence of a similar gene, more likely to be inherited, more prone to produce diseases

recessive- responsible for the recessive character, expresses the recessive trait, produces an incomplete polypeptide, requires the presence of a similar gene, less likely to be inherited, less prone to produce disease

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A girl of normal stature is born to two parents with achondroplasia who have very short stature, especially disproportionately s

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Answer:

Explanation:

Achondroplasia is an autosomal dominant disorder that is expressed in both homozygous and heterozygous dominant genotypes. Since two affected parents have a normal girl child, both the parents should be heterozygous carrier for the disease. Let's assume that the dominant allele "A" is responsible for the disease. Genotype of both the parents of the girl would be "Aa". The genotype of girl with normal stature is "aa". Genotype of her normal partner is "aa".

A cross betwee aa X aa would get all the progeny with "aa" genotype. Therefore, all of their children would have normal stature and there is 0% probability for them to have a child with achondroplasia.

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When the polymerase chain reaction (PCR) is used to amplify segments of DNA, the sample is first heated, and then cooled, in cyc

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Answer:

At least 17 PCR cycles or 16 PCR cycles

Explanation:

As we know -

In one chain of heating and cooling of polymerase chain reaction (PCR), the strands of DNA gets doubled.

The general mathematical representation of this is

${2^n - (2 * n)}$

where "n" is the number of PCR cycles.

It is given that DNA strands to be produced is 16 times the original quantity of DNA.

So the PCR cycle must be carried out at least 17 times in order to have DNA strand not less than 16 times the original quantity of DNA

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svetoff [14.1K]

Answer: Explanation:

Sickle hemoglobin differs from normal hemoglobin by a single amino acid: valine replaces glutamate at position 6 on the surface of the beta chain. Therefore the red blood cell bends differently giving it a sickle shape

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