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egoroff_w [7]
3 years ago
13

A mutation that involves one or a few nucleotides is called

Biology
1 answer:
inysia [295]3 years ago
8 0

A mutation that involves one or a few nucleotides is called

a) mutagen

b) inversion

c) point mutation

d) translocation

Answer:

c) point mutation

Explanation:

When only one or a few nucleotides of a gene are changed by mutation, this is called a point mutation. A point mutation can add one additional nucleotide to the wild type gene or may delete or substitute a nucleotide from it. For example, if a wild type gene sequence is "ATATATATA", then the addition of "C" at the position 4 will change it into "ATACTATATA". This addition of new nucleotide is called point mutation since only one nucleotide is added to the gene. Point mutations can cause serious genetic disorders such as sickle cell anemia.

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What are similarities between selective<br> breeding and genetic engineering?
vekshin1
Selective breeding makes use of existing, naturally present gene variants in a species? and the natural process of breeding. Genetic engineering involves a direct change to an organism's genome in the laboratory. Gene variants made through genetic engineering can be passed from one generation to the next.
6 0
3 years ago
The vitreous humor is a clear, watery fluid that helps to maintain the intraocular pressure of the eye and provides nutrients fo
Arisa [49]

True, the vitreous humor is a clear, watery fluid that helps maintain the intraocular pressure of the eye and provides nutrients for the avascular lens and cornea.

Vitreous humor is also known as aqueous humor or vitreous liquid. The word vitreous means transparent, and humor means liquid. It is a clear jelly-like substance that fills the inside of the eyeball. As a person ages, the vitreous humor becomes more liquid. It plays an important role in providing metabolic nutrient requirements of the lens, coordinating eye growth and providing support to the retina.

The cornea helps our eyes to focus light so we can see clearly. It is the transparent and front part of the human eye that covers the iris, anterior chamber, and pupil, along with the anterior chamber and lens.

Learn more about vitreous humor here

brainly.com/question/15271360

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5 0
2 years ago
If something grows,exchanges has, and needs energy but isn’t made of cells and can’t reproduce A it’s dead B it’s living C it’s
lorasvet [3.4K]

Answer:

D. It is non-living

Explanation:

If something is not made of cells, it cannot be alive.

8 0
3 years ago
What single imporvement do you think would be necessary to increase the reliability
choli [55]
If you mean  reliability for say an experiment. 

1. Detailed procedure of the experiment should be published.                              How many samples were tested? List of the equipment that were used and justified explanations of the process. These are important in order to prevent things like conspiracy or oversimplified test (only using a small number of sample).

2. Experiment should be done not only by one particular expert, but lots.               

If for example, Professor ‘A’ makes the hypothesis, he should not be the only one who does the experiment. Even if he has hundreds of assistant, it may not be fair, as bias may play a significant role. In order to reduce a factor called bias, other expert (with at least the same qualification) should take part in the experiment.

<span>3. </span>A wide variety of ‘sample’ (in psychology would mostly be animal, or human in some case) <span>must be tested.                                                                                                       </span>It is important to remember that each person is unique while the world consists of 6 billion people. Therefore by testing a group from the same place or background might not be enough. Things like culture/background, physical condition or surroundings need to be put into consideration.

These 3 factors are very important in order for the word ‘reliability’ to be awarded. They will also be beneficial in terms of keeping us from having any knowledge that may lead us astray. Remember that knowledge comes from a hypothesis, and for a hypothesis to be approved; it needs to be tested first by experiments. Those 3 factors would be needed to increase reliability.


7 0
3 years ago
Alec saw footage of a landslide on the news. He saw rocks falling from the side of a mountain, with some of them smashing into e
ruslelena [56]
Weathering and erosion
6 0
3 years ago
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