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Leni [432]
3 years ago
11

Why do scientists extract DNA from organisms

Biology
2 answers:
alisha [4.7K]3 years ago
7 0
They can identify disorders and diseases from DNA
Maurinko [17]3 years ago
4 0
Scientists extract DNA for many reasons.

They use the samples of DNA to test things on.

With a pure sample of DNA, <span>you can test a newborn for a genetic disease, analyze forensic evidence, or study a gene involved in cancer.</span>
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Provide explanations of genotypes and phenotypes.
Korvikt [17]
The phenotype is the physical appearance of an organism, while the Genotype is the genetic composition of an organism. Phenotype is observable and are the expression of the genes of an individual. So even the organism with the same species may differ, with a minute difference in their genotype. This is the main difference between the two.

We can notice one’s hair colour, eye colour, height, weight, skin colour, etc. but cannot look at genes responsible for these characters, so the observable physical look is the phenotype while the unnoticed genes responsible for such characters present in the DNA of cell of the individual is genotype.

To explain the above lines, here is the simple example of a pure red colour flowering plant (RR) is crossed with the white colour flowering plant (rr). The result of the Genotype of the F1 generation will be – Rr (Hybrid red colour), and the Phenotype of the F1 generation will be the – Red colour flowering plant.

Genotype and phenotype are the two very closely related and similar-sounding words, but their meaning is different. Our earth has a dynamic variety of organisms, present in soil, water and on land. But as the genome of each organism is different, and so there phenotypes also whether it’s their colour, height, weight or other morphological features.
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3 years ago
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If the number of photosynthetic organisms on the earth decreased drastically, which would happen as a result?
Leokris [45]
I think it be D.But if that ever happen I'm sure that the scientists will find away to stop it 
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3 years ago
What will happen to a population of predators if there is a sudden, temporary increase in the number of prey?
alekssr [168]
The number of predators and preys change from time to time following cycles. Whenever there is fewer prey, predators start dying because they have not enough to eat; however, that provokes the population of prey to be increased while there are fewer predators. So if suddenly the number of prey gets bigger, regardless of the number of predators, the cycles get disturbed by this sudden occurrence. The predators will get more to hunt, therefore getting more violent.
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The main difference between a prokaryotic cell and a eukaryotic cell is A) the ability to grow. B) the ability to reproduce. C)
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D) the presence of a true nucleus
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Unsaturated or saturated
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