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nata0808 [166]
3 years ago
6

What is a karyotype, and how can it be used to study human chromosomes?​

Biology
1 answer:
AveGali [126]3 years ago
8 0

Answer:

karyotype is the array of chromosomes possessed by a certain specie or by an individual.

it can be used to study human chromosome by facilitating information on the type or array of the chromosomes, hence knowing the data, characteristics and effects of such a chromosome

Explanation:

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How are the equations for photosynthesis and cellular respiration related?
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Answer:

The equation of the photosynthesis becomes reverse in the cellular respiration. In both process the reactants and products are altered.

Photosynthesis is the light harvesting process. Here the plants use water, carbon dioxide, light as raw material to produce glucose, energy and oxygen. This process occurs in the chloroplast of the leaves. In this reaction the products are oxygen and glucose.

In cellular respiration, the byproduct of photosynthesis i.e. glucose is oxidised to release energy and carbon dioxide, along with the ATP molecules. This reaction is the reverse reaction of the photosynthesis.

In cellular respiration the product of the photosynthesis becomes becomes reactant.  

The cellular respiration occurs in the cytoplasm of the cell and involves many steps to release energy. The various cellular respirations are glycolysis, kreb's cycle, electron transport chains, etc.

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What are the steps of meiosis
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Answer:

In meiosis I there is prophase I, metaphase I, anaphase I, and telophase I and then in meiosis II there is prophase II, metaphase II, anaphase II, and telophase II.

Explanation:

In meiosis I we have;

Prophase I in which a pair of homologous chromosomes line up and form a tetrad. This is the stage during which genetic recombination occurs.

Metaphase I occurs, during which the homologous chromosomes line up opposite each other at the metaphase plate. The chromosomes orientate themselves randomly, thus homologous chromosomes are distributed randomly to daughter cells .

In Anaphase I, homologous chromosomes move to opposite sides of the cells but sister chromatids remain together. Each cell now has 23 chromosomes.

Telophase I in which the homologous chromosomes move to the poles and cytokinesis occurs. Two daughter cells are formed.

In meiosis II we have;

Prophase II (note: there is no interphase as seen in mitosis) during which chromosomes start to move to the metaphase II plate. There is no replication.

Next is metaphase II when the chromosomes align at the metaphase II plate.

In anaphase II the sister chromatids separate from each other and move towards opposite poles.

Lastly, in telophase II cytokinesis occurs again and four daughter cells are produced. Each of the four daughter cells has 23 chromosomes.

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Gases such as water vapor and carbon dioxide that trap heat near earth are known as greenhouse gases.
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