Phylum chordata differs from other animal phyla because it contains a notochord , dorsal, hollow nerve cord, and a pharyngeal.
The correct answer is: introns
Processing of mRNA is process that occurs only in eukaryotic cells. After the transcription, newly formed mRNA molecule is called and it must be processed into a messenger RNA (mRNA). Processing includes:
• Addition of a 5' cap to the beginning of the RNA
• Polyadenilation- addition of a poly-A tail (tail of A nucleotides) to the end of the RNA
• Splicing- removal of introns and linking the exons
After these steps mRNA is mature and used for the further steps (e.g. translation).
Sometimes some genes are alternatively spliced.
Dolines. I just looked it up on Quizlet. If you need answers, make an account on Quizlet and get the answers on their flash cards.
Answer:
air pollution can irritate your airways and may cause shortness of breath, coughing, wheezing, asthma episodes and chest pain.
Explanation:
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<span>A) in the granum of the thylakoid membranes of the chloroplast. thats the anser
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