Answer:
The nucleotide sequence of a DNA codon is TAG. In an mRNA molecule transcribed from this DNA, the codon has the sequence 5'-<u>AUC-3'</u>. In the process of protein synthesis, a transfer RNA pairs with the mRNA codon. The nucleotide sequence of the tRNA anticodon is <u>3'-UAG-5'</u>. The amino acid attached to the tRNA is <u>Isoleucine</u>.
Explanation:
In the process of protein synthesis the mRNA contains the sequence of nucleotides —transcribed from the DNA— that defines the sequence of amino acids that a synthesized protein will have.
Codons are triplets of nitrogenous bases present in mRNA, which encode an amino acid, as well as the start and end of protein synthesis.
Anticodons correspond to triplets of bases present in transfer RNA (tRNA), which correspond with mRNA codons. tRNA is responsible for coupling amino acids to the polypeptide chain being synthesized. In view of this:
<em>- DNA triplet: TAG</em>
<em>- Codon mRNA: 5'-AUC-3'
</em>
<em>- Anticodon tRNA: 3'-UAG-5'</em>
<em>- Amino acid: Isoleucine</em>
<span>All of the answer choices relate a source of pollution with its effect; however, all of them except one is correct. <u>The answer is B.</u>
Option A states that the use of aerosol sprays increases ozone; however, the effect is the opposite. Moreover, the depletion does not result in acid rain. In option C, although fossil fuels do cause air pollution, they do not do so by reducing the water vapor content. Instead, they actually increase water vapor content. Their effect is of increasing the content of carbon dioxide, sulfur dioxide and nitrogen dioxide. Finally, CFCs cause ozone depletion, they do not seep into the ground.</span>
I believe it’s A (captive breeding)
C they will adapt and eventually become a new species
Oncogenes result from turning on, or activating proto oncogenes. Proto oncogenes are genes that code for positive cell cycle regulators, so proto oncogenes code for proteins that turn on cell division. Proto oncogenes are normal genes, but when they are mutated, they become oncogenes. Oncogenes are expressed too much, which makes them turn on cell division too much, which is cancer.
