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Nuetrik [128]
3 years ago
9

Which of the following is the most complex level of organization in a

Biology
1 answer:
Zigmanuir [339]3 years ago
8 0
I think the answer is organ systems. I hope this helps. :)
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What is air as a compound
Snowcat [4.5K]
Air is not a compound it's a mixture
3 0
4 years ago
. For the following give the mRNA, tRNA and amino acid (a.a.) sequence that will be created:
alexdok [17]
<span>mRNA: UACAUGGCCUUACGCUAA tRNA: AUG UAC CGG AAU GCG AUU a.a: Tyrosine, Methionine, Alanine, Leucine, and Arginine DNA has 4 different bases, they are Adenine (A), cytosine (C), guanine (G), and Thymine (T). RNA also has 4 bases with three of them being identical to the DNA bases and Thymine being replaced with Uracil (U). These bases are generally represented by the 1st letter of their names. Each of the bases will join with a complementary base, so A always pairs with T or U, and C will pair with G. So to create the mRNA, simply replace every A with a U, every C with a G, every G with a C, and finally, every T with a A. So mRNA: UACAUGGCCUUACGCUAA Now for tRNA, there's a slight twist. It only comes in 3 base codons, You won't find a sequence of tRNA other than in 3 base codons. And each of those codons will be uniquely paired with an amino acid. In the ribosomes, the mRNA will be sequentially scanned 3 bases at a time allowing for a matching tRNA sequence to bind to the exposed 3 bases, this will cause the next amino acid to be bound into the protein being constructed. So split the mRNA into 3 base sequences and calculate the complement to get the tRNA. A simple shortcut is to look at the original DNA sequence and simply replace a T bases with U. So tRNA: AUG UAC CGG AAU GCG AUU Notice the spaces every 3rd base. THIS IS REQUIRED. These is no continuous length of tRNA. You'll only find it in 3 base lengths and each of them will be bound with an amino acid. For the amino acid that's coded to the RNA, you'll need to use a lookup table in your text book, or one you can find online. Then it's a simple matter of matching each 3 base sequence to the amino acid. For the sequence given we have: AUG - Tyrosine UAC - Methionine CGG - Alanine AAU - Leucine GCG - Arginine AUU - STOP Notice the AUU doesn't decode to a specific amino acid. It instead indicates to the ribosome to stop the production of the protein. So the amino acid sequence for the originally given DNA sequence is: Tyrosine, Methionine, Alanine, Leucine, and Arginine.</span>
8 0
4 years ago
Why is industrial society inherently unsustainable
natka813 [3]
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7 0
3 years ago
What traits is controlled by multiple alleles in humans?
galina1969 [7]
The best-characterized examples of multiple alleles in humans is the ABO blood groups, discussed in the Non-Mendelian inheritance concepts. Other human traits determined by multiple alleles would be hair color, hair texture, eye color, built, physical structure, etc.
6 0
3 years ago
A new drug blocks the adhesins on the surface of a bacterial pathogen. what would likely be the major effect of this drug? a new
kati45 [8]
I think that it will prevent infection by this pathogen.  In a gram-positive bacteria a polysaccharide serves as specific adhesin To effectively achieve adherence to host surfaces, many bacteria produce multiple adherence factors called adhesisns. Which are expressed by both pathogenic bacteria and saprophytic bacteria. Therefore a drug that blocks adhesins on the surface of a bacteria or any other pathogen, makes it impossible for a bacteria to survive in the host.
7 0
3 years ago
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