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34kurt
3 years ago
7

Describe the role / function of mrna, trna and rRna

Biology
1 answer:
Advocard [28]3 years ago
3 0
The three roles<span> of RNA in protein synthesis. </span>Messenger RNA<span> (</span>mRNA) is translated into protein by the joint action of transfer RNA (tRNA<span>) and the ribosome, which is composed of numerous proteins and two major </span>ribosomal RNA<span> (</span>rRNA<span>) molecules. ... </span>Ribosomal RNA<span> (</span>rRNA<span>) associates with a set of proteins to form ribosomes.</span>
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Which of the following organelles is the principal and distinquishing feature of the eukaryotic cell? A. ribosomes B. chloroplas
dsp73

Answer:

E. Nucleus

Explanation:

All living organisms were classified into three major domains viz: Eukarya, Archaea and Bacteria. Eukarya are referred to as EUKARYOTES while the other two domains are collectively referred to as PROKARYOTES.

The major basis of this classification is the presence or absence of a membrane bound NUCLEUS. Eukaryotes are organisms characterized by the possession of a membrane-bound nucleus that houses their genetic material (DNA) while prokaryotes lack a nucleus and hence, their genetic material is found naked in the cytoplasm. Although, prokaryotic cells lack other membrane-bound organnelles like Chloroplast, mitochondria etc. but nucleus is the basis of this classification:

EU meaning TRUE, KARYA meaning NUCLEUS, hence Eukarya means organisms will true nucleus.

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3 years ago
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