An organism has gametes that contain 18 chromosomes how many chromosomes are in each of its body cells

1 answer:

8 0

The number of the chromosomes in each of its body cells from the number of chromosomes of its gametes would be 9. It is because the number of chromosomes in a gamete must be halved in order to achieve the number of chromosomes present in each body cell which is important for cell division.

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Meiosis does PMAT twice! That means there is a prophase I and a prophase II. There is a metaphase I and a metaphase II. Etc… If

AURORKA [14]

Answer:

If there is homologous chromosomes (metaphase I) or duplicated chromosomes/sister chromatids (metaphase II) in the middle of the cell.

Explanation:

Meiosis involves two series of nuclear divisions grouped into meiosis I and meiosis II. Each division has the same number of stages i.e prophase, metaphase, anaphase, telophase etc. Meiosis I involves the separation of homologous chromosomes i.e similar but non-identical chromosomes from each parent.

On the other hand, meiosis II involves the separation of sister chromatids (duplicated chromosome). Since METAPHASE is generally characterized by the alignment of chromosome at the middle of the cell for separation in the anaphase stage, it means that the difference between metaphase in meiosis I and II will be whether it is homologous chromosomes that are in the middle or sister chromatids.

Therefore, according to this question, I would know if the cartoon is in metaphase I or II if:

- there are homologous chromosomes in the middle of the cell (metaphase I)

- there are sister chromatids in the middle of the cell (metaphase II).

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2 years ago

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The sensing component of the feedback system that senses the changes in the environment and generates nerve impulse is known as

soldi70 [24.7K]

The sensing component of the feedback system that senses the changes in the environment and generates nerve impulse is known as a receptor.

<h3>What are nerve receptors?</h3>

Nerve receptors can be defined as biological structures capable of converting external/internal stimuli to electrical impulses.

Nerve receptors include different types of cellular structures located in eyes, skin, mouth, nose, etc.

In conclusion, the sensing component of the feedback system that senses the changes in the environment and generates nerve impulse is known as a receptor.

Learn more about nerve receptors here:

brainly.com/question/25753221

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1 year ago

You could distinguish a granum from an inner mitochondrial membrane because the granum, but not the inner mitochondrial membrane

goblinko [34]

Answer:

Answer ...... would have photosynthetic pigments.

Explanation:

In a short explanation, the collective term for the stack of thylakoids within the chloroplast of a plant cells is known as GRANUM.

Note that , chloroplasts are made up of the chlorophyll, which are the green pigments responsible for photosynthesis.