Answer:
Plant cells have chloroplasts because they make their own food. Plant cells have a cell wall so that they do not burst when the central vacu
ole fills up with water. ... Each organelle has it's own specific fun
ction to help the cell survive. The nucleus of a eukaryotic cell directs the cell's activities and stores DNA.
Explanation:
<span>Shine-Dalgarno sequence is a sequence that precedes the starting codon in the mRNA. the small sub-unity of ribosome will recognize it with by a specific sequence in the initiation phase of translation.
The best way to restore the translation speed if the Shine Dalgarno sequence is mutated is to make a change in the small sub-unity of the ribosome, specifically in the RNA sequence that recognizes the mRNA Shine Dalgarno sequence, so it can be recognized again. and the translation process will be restored.
</span>Another way to improve a translation speed if to provoke a mutation in the proteins' genes involved in the translation process (like enzymes and translation factors), there will be a chance to increase their effectiveness, especially for enzymes, so the translation speed will be improved.
Answer:
The region where the embryoblast contacts the trophoblast is called the embryonic pole. ... Just before implantation, the cells in the embryoblast start to differentiate into two layers - the epiblast (primary ectoderm), and an internal layer of cuboidal cells called the hypoblast (or primary endoderm).
