Because the RNA molecules that are in most organisms can’t replicate themselves. Further, the RNA molecule that is in most organisms can’t transcribe its information on the DNA.
The DNA molecule readily replicates itself under the right conditions. The reason that DNA molecules replicate themselves much easier than RNA molecules is because DNA has a double helix structure.
The double helix can unzip down the middle, creating two molecules with complementary information.The RNA is generally a single string of base pairs. RNA isn’t double anything. So an RNA molecule usually can’t divide into two molecules with complementary informaiton.
That being said:
RNA molecules in some virus species can replicate itself. This RNA can transcribe information onto the DNA of the host organism.
RNA molecules with a certain structure under the right conditions can replicate themselves. However, replication in RNA is not as reliable as replication of DNA. That is one reason that RNA viruses mutate at a much faster rate than most DNA viruses.
<span>A woman's ovary is sixteen times the size of a single sperm. This allows said sperm, or any of its friends, to penetrate the ovary with ease and precision. The ovary will also serve as the home for this sperm during its growth, proving that its larger size has multiple purposes in assisting in sperm growth.</span>
No it will not bwecause there are two valves
Answer:
The correct answer would be acrylic glass.
It can be explained with the help of refractive index.
It is a dimensionless number used to describe that how fast a light can propagate through a material.
Thus, the more the refractive index the more will be the bending.
Acrylic glass has the least refractive index as compared to the other materials provided.
Thus, the light would bend the least if acrylic glass would be used.
Answer:
A DNA molecule produced by combining DNA from different sources is known as recombinant DNA.
Explanation:
Recombinant DNA (rDNA) can be obtained by coupling DNA fragments from different sources, a process that is performed at the restriction site level and uses enzymes.
Once rDNA has been designed —cutting out fragments of DNA that are then reassembled— it must be brought to a specific location in the cells, to be copied and expressed, using means of transport called vectors.
<u>DNA recombination</u> is performed in biotechnology laboratories specialized in the manipulation of genetic material.
The other options are not correct because:
- <u><em>Mutant or mutated DNA</em></u><em> is a DNA molecule with an alteration of its nitrogenous base sequence
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- <u><em>Hybrid DNA</em></u><em> is a variant of recombiant DNA, in which only two DNA molecules from different sources are used.
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- <u><em>Polyploid</em></u><em> refers to cells containing the genome of different species.</em>
