d. all of the above
The right answer is 5.
To answer this question, we must think in the same way as the demonstration showing that codons of 3 are necessary to encode an amino acid (in terrestrial species).
To calculate the number of nucleotides in a codon in these new species: we should use the law of:
nucleotides existing ^ (number of nucleotides in a codon) = number of codons. (in order to have the number of possible codon combinations)
The number of codons must be greater than or equal to the number of amino acids (17).
2 ^ 1 = 2 (<17)
2 ^ 2 = 4 (<17)
2 ^ 3 = 8 (<17)
2 ^ 4 = 16 (<17)
2 ^ 5 = 32 (> 17)
32> 17 so the number of nulceotides in a codon must be 5.
The minimum size of a codon for the hypothetical Martian life-forms, which use only two bases (A and T) and have only 17 amino acids in their proteins, should be five bases. This size is needed to generate a minimum of 17 different codons.
The question is asking for the minimum size of a codon in these hypothetical Martian life-forms that use only two bases (A and T) in their DNA and have only 17 amino acids in their proteins. To analyze this, we must comprehend how codons function. A codon is a sequence of nucleotides in RNA that codes for a specific amino acid in a protein. In life on Earth, each codon is made up of three bases (each base can be A, T, C, or G), which makes for a total of 4^3 = 64 possible codons coding for 20 different amino acids.
However, in the Martian organisms, there are only two available bases (A and T) for constructing codons. In order to generate at least 17 different codons to code for the 17 different Martian amino acids, each Martian codon would have to be made up of at least 5 bases (since 2^4 = 16 is not enough, and 2^5 = 32 would be sufficient).
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2. The DNA fragment has a lower molecular weight.
3. The DNA fragment has a higher positive charge.
4. The DNA fragment has a higher negative charge.
Explanation:
Boom, here are the correct answers:
- 1. The DNA fragment has a higher molecular weight. (heavier molecules move slower through the gel)
- 3. The DNA fragment has a higher positive charge. (more charge = more interaction with the electrical field)
- 4. The DNA fragment has a higher negative charge. (again, more charge = slower movement)
- 2 is FALSE! Lower molecular weight DNA fragments move faster through the gel, so the fragment that traveled less far in the gel actually has a higher molecular weight.
The DNA fragment that traveled less far has a higher molecular weight.
The DNA fragment that traveled less far in the gel has a higher molecular weight. Gel electrophoresis separates DNA fragments based on their size, with larger fragments traveling a shorter distance. Therefore, option 1 is correct.
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eradicate the bird flu for good. Which fact would support this concern?
It would be difficult to convince poultry farmers to vaccinate their chickens because of the cost.
It would not be possible to vaccinate all poultry being grown for consumption against the virus.
Other forms of the virus have cropped up, such as H5N8 and H7N9, that would not respond to the vaccine.
Vaccinations against H5N1 are proven to be effective against other viruses such as H5N8, H7N9, and H1N1.
Other forms of the virus have cropped up, such as H5N8 and H7N9, that would not respond to the vaccine. The correct option is C.
Thus, the fact that additional strains of the virus, such H5N8 and H7N9, have emerged and do not react to vaccine supports the worry that, even if an H5N1 vaccine is effective, it could not be sufficient to completely eliminate the bird flu.
This is due to the fact that new virus strains can develop and emerge over time, and a vaccine that is effective against one strain might not be against another. Therefore, to tackle the bird flu and other emerging infectious illnesses, continual surveillance and the creation of fresh vaccines and therapies may be required.
Thus, the ideal selection is option C.
Learn more about vaccine here:
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