What is the role of bacteria in the nitrogen cycle?

1 answer:

4 0

THe bacteria that lives in the nodules of legumes are the only ones able to fix nitrogen gas into ammonia, which is later fixed by other bacteria in the soil to nitrites and nitrates that the plants can use.

some bacteria also performs denitrification, which converts ammonia back to nitrogen gas, allowing the cycle to continue

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Freckles are dominant over no freckles. Stacey is hybrid for freckles. Her husband, Charlie, does not have any. If they have fou

ozzi

Answer:

2 children will have freckles

Explanation:

This question is just a play on words for the punnet square. You have a dominate trait , freckles, and a recessive trait, no freckles. Charlie has no genes for freckles, so he will be represented as 2 lower case letters. Stacey has both types of genes for freckles and no freckles, so she will be represented as 1 capital letter and 1 lowercase letter. I'll try to make a punnet square down below. Capital A represents the dominate trait and lowercase a represents the recessive trait.

A a

a Aa aa

As you can see, 2 of her children have the dominate trait for freckles, and two of her children only have recessive traits, which means no freckles:)

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3 years ago

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Whats the middle of a cell called

AlexFokin [52]

Nucleus’s it acts like the brain!

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3 years ago

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Suppose these two chromosomes are found in a cell nucleus during prophase. what is the relationship between chromatids a, b, c,

Musya8 [376]

In this image we can see that A is identical to B, and C is identical to D.

Chromatid (Cht) is a DNA molecule (the nucleofilament) associated with histone proteins (PH) and non-histone proteins (PNH)
<span>Each chromosome of a cell may consist of one or two chromatids depending on its state: just after a mitosis, or after the second meiotic division, each chromosome consists of only one chromatid, the rest of the time, after DNA replication, each chromosome consists of two completely identical chromatids, connected by the centromere, thus giving the two rods the shape of an X.</span>

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4 years ago

Determine whether the statement is true or false, and why. “Plasma cells are fused with cancerous myeloma cells to produce immor

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Answer:

Explanation:

Myeloma cells are fused with cancerous plasma cells to produce hybridoma cells that produce a single type of antibody for the lifetime of the cell.

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Which of these options represents the correct flow of events during meiosis II?

Nuetrik [128]

The correct answer is A.) Sister chromatids pulled to opposite pole, nucleoli form, cytokinesis.

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3 years ago

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