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Lisa [10]
4 years ago
7

Why is it so important to be able to amplify dna fragments when studying genes? dna fragments are too small to use individually.

a gene may represent only a millionth of the cell's dna. restriction enzymes cut dna into fragments that are too small. a clone requires multiple copies of each gene per clone?
Biology
2 answers:
zysi [14]4 years ago
8 0
The correct answer is: a gene may represent only a millionth of the cell's DNA.
The method used to amplify DNA fragments is called polymerase chain reaction (PCR). PCR is a technique used in molecular biology to produce thousands to millions of copies of a single targeted DNA sequence. When studying a specific gene, the scientist needs to be able to target and focus only on the DNA sequence which constitutes this exact gene. However, a gene is only a very small portion of an organism's genome. Therefore, the scientist uses PCR to amplify this DNA sequence and produce a large number of copies.
Mama L [17]4 years ago
5 0

Answer: Option A

Explanation:

It is important that the fragment of DNA should be amplified in order to get an optimum of DNA which is to be used for any purposes. While performing any experiment or using the DNA for research purposes requires DNA in a amount which is easily used for experiment.

A small size of DNA or a fragment of DNA is not suitable for the experiment. Any detection of bacterial growth, et cetera requires DNA in an optimum amount.

So, it should be amplified prior to the experiment.

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6 0
4 years ago
based on the description and data table above which of the following combination best classifies the song Sparrow​
sergiy2304 [10]

Answer:

The song Sparrow​ can be best classified as R-strategist and generalist

Explanation:

A generalist is an organism that can adapt to different habitats and can consume different resources.

As written in the description, the song Sparrow show are able to survive in a number of different habitats and they can feed on many preys hence, they are generalists.

R- strategist organisms can be described as the organisms which produce wide number of offsprings and have a short life span. They might produce enormous number of eggs but very little of them will be able to survive.

As the song Sparrow can produce several broods in a year hence, it is an R-strategist.

6 0
4 years ago
Compared with pure cultures grown in the lab, microbes in nature usually experience a wider range of environmental conditions, m
Lorico [155]

Answer:

The correct answer is B-typically grow slower than in pure culture

Explanation:

In nature, microbes experience lots of challenges like challenges to get space, to live, to get food, to adapt to the changing environment, to get protection from their pathogens and predators, etc. So these all challenges affects the growth rate of microbes.

In pure culture only one type of bacteria is grown on a nutrient-rich media and a steady environment is given to them to grow. In pure culture, there are no predators and competitors for microbes.  

So all this provide favorable condition for a microbe to flourish in a pure culture so the growth of an organism in pure culture is higher than in nature. So the correct answer is B.

4 0
4 years ago
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Answer:

First, what's the condition? Then I could help.

Explanation:

3 0
3 years ago
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