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❖ Eukaryotic chromosomes condense by wrapping tightly around histones.
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These are all phases of cells multiplying without this we would all be one cell organisms
If none of the nucleotides includes stop or start codons when a segment of a gene contains 27 nucleotides there will be 81 amino acids in this segment code.
Answer: Option B
<u>Explanation:</u>
Codon is a nucleotides within messenger RNA. A stop or start codon is a nucleotide triplet which signals protein termination. Start codons initiate to start translation while the stop codon initiates termination.
The genetic codes are the sequence for nucleotide that codes for amino acids. A segment containing 27 nucleotides multiplied by 3 gives 81 amino acids. Every nucleotide in an mRNA are read “three at a time”. Hence this segment codes for 81 amino acids.
An abnormal enlargement of the spleen that can develop from infections is called <u>splenomegaly</u>.
Infections, such as mononucleosis, are among the most common causes of splenomegaly. Liver problems such as cirrhosis and cystic fibrosis, can also cause an enlarged spleen.
Another possible cause of splenomegaly is juvenile rheumatoid arthritis. This condition can cause inflammation of the lymph system.
An enlarged spleen causes serious complications or the cause can't be identified or treated, surgery to remove your spleen (splenectomy) might be an option. In chronic or critical cases, surgery might offer the best hope for recovery. Elective spleen removal requires careful consideration.
To know more about splenomegaly, here
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