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Nat2105 [25]
3 years ago
15

In cells, genes are segments of DNA that code for proteins; not sugars or complex carbohydrates, or lipids, but proteins. The co

de in the sequence of nucleotides in a gene specifies the sequence of nucleotides in messenger RNA which in turn specifies the sequence of amino acids in a protein. The sequence is variable because of mutations which can change the sequence of amino acids in the protein coded for by that gene. Therefore, in evolution, a change in a single code for a single amino acid may have an effect on individual survival. Proteins carry out many functions in a cell such as
Biology
1 answer:
kap26 [50]3 years ago
6 0

Answer: '' any of the answers are correct'' .   In cells, genes are segments of DNA that code for proteins; not sugars or complex carbohydrates, or lipids, but proteins. The code in the sequence of nucleotides in a gene specifies the sequence of nucleotides in messenger RNA which in turn specifies the sequence of amino acids in a protein. The sequence is variable because of mutations which can change the sequence of amino acids in the protein coded for by that gene. Therefore, in evolution, a change in a single code for a single amino acid may have an effect on individual survival. Proteins carry out many functions in a cell such as any of the answers are correct. ♡ hope this helps ♡.

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4 0
3 years ago
Linda owns an orchard of orange trees, and she is worried because she notices that many of her orange trees are unhealthy. They
ANTONII [103]

Answer:

If there is low genetic diversity, she needs to introduce something into the system to increase the variation. I would suggest breeding the orange trees with other new orange trees to change the allele frequencies, which is called gene flow.

Likely the fungi are attacking them somewhere that they have decreased resistance, and if more alleles were introduced, there would probably be evolution towards a genotype that promotes defense against these fungi.

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3 years ago
There are several types of Monera that are harmful to humans. Research a harmful monera (salmonella is an example) and write a t
bezimeni [28]

Answer:

    One of the most common Monera is Escherichia coli, also known as E. coli.  "[E. coli] is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms." States ________.* Signs of E. coli are stomach pains and cramps, diarrhea that may range from watery to bloody, fatigue, loss of appetite or nausea, vomiting, and low fever < 101 °F/ 38.5 °C (not all people have this specific symptom).

    E. coli comes from human and animal wastes. During precipitation, E. coli may be washed into creeks, rivers, streams, lakes, or groundwater. Another way to get it is from contaminated food, a lot like corona virus. When cattle are slaughtered and processed, E. coli bacteria in their intestines can get on the meat. And when ground beef is made, it combines meat from many different animals, increasing the risk of contamination.

<u>*Look at comments</u>

8 0
3 years ago
Read 2 more answers
Why are cells so small? In your answer, use the terms volume, distance, diffusion, surface area, plasma membrane.
Leno4ka [110]

Answer:

Cells are so little, so they can maximize their ratio of surface area to volume.

Explanation:

Smaller cells have a higher ratio which allows more molecules and ions to move across the cell membrane per unit of cytoplasmic volume. Cells are so small because they need to be able to get the nutrients in and the waste out quickly.

4 0
2 years ago
Which of the following characteristics least relates to prokaryotic cells?
miv72 [106K]

Answer:

2

Explanation:

Prokaryotic cells don't have a nucleus or membrane bound organelles

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