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Veseljchak [2.6K]
3 years ago
10

Which has higher air pressure—warm air or cold air? How do you know?

Biology
1 answer:
yulyashka [42]3 years ago
7 0
Typically at the surface the highest pressures are with cold air masses. The highest surface pressures were recorded a few years ago in Alaska, it was extremely cold!.
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Briefly explain transcription and translation using the following terms: gene, RNA polymerase, tRNA, mRNA, ribosome, nucleus, co
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Answer:

take the information in DNA and use it to produce proteins. Transcription uses a strand of DNA as a template to build a molecule called RNA. ... During translation, the RNA molecule created in the transcription process delivers information from the DNA to the protein-building machines

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which translates mRNA. tRNA is the link between the two other types of RNA.

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3 years ago
Human cells have 46 chromosomes. Each chromosome consists of a pair of identical chromatids attached together by a structure cal
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Answer:

The answer is 46 chromosomes.

Before mitosis, cell duplicates its DNA material so there are 46 chromosomes in duplicates and in total there are 46 x 2 = 92 sister chromatids. During mitosis, sister chromatids first join in the middle of the cell and then separate towards the opposite sides of the cell. After they separate, there are 46 sister chromatids on the one side and 46 sister chromatids on the other side. Each sister chromatid at the end of cytokinesis actually represents the chromosome of the newly formed daughter cell.

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2 years ago
*What is the relationship between DNA and gene expression? How do they depend on each other?*
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Answer:

Gene expression is the process by which the instructions in our DNA are converted into a functional product, such as a protein. When the information stored in our DNA? is converted into instructions for making proteins? or other molecules, it is called gene expression

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3 years ago
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A currently popular diet is the Keto Diet in which followers attempt to eat a diet high in protein and fats (lipids), and low in
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Answer:

Meat, fish and eggs.

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Meat, fish and eggs are the foods that do not contain any or less carbohydrate, these foods are high in protein and fats. By looking on the nutrition label for the amounts per serving (in grams) of fiber and total carbohydrates, if there is no or less percentage of carbohydrates so by see the label we can say that whether the food has low or high amount of carbohydrates.

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What pulls the chromosomes apart in anaphase?
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Answer:

D. Spindle Fibers

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During anaphase, the centromeres of each chromosome split and the mitotic spindle pulls the sister chromatids apart.

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