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alexira [117]
2 years ago
8

What is the result of a change in DNA?

Biology
2 answers:
eimsori [14]2 years ago
5 0

Answer:

The result of a change in DNA is that there will be a mutation of some sort. This could be a nonsense mutation which would not code for anything, it could be a missense mutation that results in the substitution of one amino acid for another in the protein made by a gene, an insertion which changes the number of DNA bases in a gene by adding a piece of DNA and as a result the protein made by the gene may not function properly, a deletion which changes the number of DNA bases by removing a piece of DNA, a duplication which consists of a piece of DNA that is abnormally copied one or more times, or a frameshift mutation which occurs when the addition or loss of DNA bases changes a gene's reading frame. A reading frame consists of groups of 3 bases that each code for one amino acid.

jekas [21]2 years ago
3 0
This can cause mutations, these mutations can be helpful,harmless or they can be harmful.
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Name one animal cell and one plant cell that has no nucleus when fully developed
Gekata [30.6K]

In plant cell sieve tubes has no nucleus when fully developed it helps in transportation of minerals and in animal cell the red blood cells has no nucleus when fully developed

5 0
3 years ago
How do I identify sample, independent and dependent variables?
Mamont248 [21]
A sample is a random, unbiased selection out of a larger group. An independent variable is one that is changed as to see how it will affect the dependent variable in an experiment. 
Hope that helped.
4 0
3 years ago
List
FinnZ [79.3K]

Answer:

  • <u>Medullary hormones</u>: the epineprhin and the norepineprhin. <u>Five different effects that these hormones produce are:</u> increase heart rate, produce cardiac muscle contraction, elevate blood preasure, increase breathing, dicrease digestive activity, increase metabolic rate.
  • <u>The most important mineralocorticoid secreted by the adrenal cortex: </u>aldosterone.
  • <u>Actions of the aldosterone: 1. </u>Conserves sodioum ions and water in kidneys. 2. Excrete potasium ions 3. Conserves H2O.

Explanation:

The epineprhin and norepineprhin are the most important medullary hormons. They are so important because of the functions that they have. They are responsable for the increase of heart rate and if it´s movement, along with digestive and metabolic activity.

Thanks to the aldosterone which is the most important secreted minaralocoricoid, kidneys conserve water and sodium and eliminate posatium.

6 0
3 years ago
Botulism is caused by ingestion of a proteinaceous exotoxin; therefore, it can easily be prevented by
hammer [34]

Botulism can easily be prevented by boiling food prior to consumption.

<h3>What is Botulism?</h3>

Botulism may be defined as an imperative food poisoning that is provoked by botulinum toxin delivered in food by a bacterial species clostridium botulinum.

Clostridium botulinum inhibits the release of acetylcholine in the neuromuscular junction and causes defects in sensory perception through the central nervous system.

It can only be prevented by taking the proper boiled food prior to consumption.

The complete question is as follows:

  • boiling food prior to consumption.
  • administering antibiotics to patients.
  • not eating canned food.
  • filtering food.
  • preventing fecal contamination of food.

Therefore, the correct option for this question is A, i.e. boiling food prior to consumption.

To learn more about Food poisoning, refer to the link:

brainly.com/question/2192816

#SPJ1

4 0
1 year ago
The less-movable end of a skeletal muscle is the
Sergio039 [100]

Answer: D). Proximal end

Explanation:

The less moveable end of the skeletal muscle is the medial or proximal end. It can be found near the point of attachement of the bones called as origin. It can be observed near the midline of the body.

5 0
3 years ago
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