How many possible genetic variations can be produced during meiosis and sexual reproduction?

1 answer:

5 0

3? I think. like if you think about for example hair, let's say someone's mom is blonde and the rest of her family is also blonde and their dad is brunette but their dad's mom had red hair there would still be a chance for the potential child to have red, blonde, or brown hair. I'm not positive this is correct but I hope it helps.

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In some plants, phloem cells are connected end-to-end by sieve plates, creating a direct connection between the cytoplasm of phl

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Answer:

Explanation:

This is because the sieve plate interconnected like that help in exchange of substances or transport of substances between element cell and it act as a barrier to prevent the sap from been loss when phloem is damaged or cut. The sieve plates form the sieve tube which is the conducting element of the phloem. It is formed from series of elongated cells that are interconnected by perforations in their walls.

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What were some of the pollutants named in the article and what are they used for?

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I don't see your article, but one pollutant, CFC, is used in refrigerators and aerosols. Please mark Brainliest!!!

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Cells having matched pairs of chromosomes are

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Homologous pairs, Eg. X and Y
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D) Long chains of amino acids used for building, repair, and maintenance

Proteins are made up of amino acids, and they are used to create substances (like hair, nails, etc.)

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Based on the demonstration and your microscopic investigation, which of the three solutions is hypotonic to the red blood cells?

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You have given no demonstration based on your microscopic investigation so I cant tell you the answer to the question. I will try to help you by elaborating how to decipher..

Three terms hypotonic, hypertonic and isotonic are used when referring to two solutions separated by a selectively permeable membrane.

The hypertonic solution has a great concentration of OAS than the solution on the other side of the membrane. It is described, therefore, as having a great osmolarity. The hypotonic solution has a lower concentration of OAS, or osmolarity, than the solution on the other side of the membrane. When the two solutions are at an equilibrium, the concentration of OAS being equal on both sides of the membrane, the osmolarities are equal and are said to be isotonic.

The net flow of water is from the hypotonic to the hypertonic solution. When the solutions are isotonic, there is no net flow of water across the membrane.

If red blood cells are placed in a solution with a lower solute concentration than is found in the cells, water moves into the cells by osmosis, causing the cells to swell; such a solution is hypotonic to the cells.

So, look at the information and data you have on your microscopic investigation and use these guidelines to tell you which is which.

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