S phase is the DNA synthesis phase. During this portion of the cell cycle, the cell replicates its entire complement of DNA. It also forms the centrosome, which is the microtubule-organizing center that will eventually help the cell pull apart the DNA that will be divided between daughter cells.
Answer:
<u>Both</u>:
- The start codon is often AUG
<u>Eukaryotic cell only:</u>
- The larger subunit of the ribosome is 60s.
- The ribosomes initially binds the 5' end of mRNA.
<u>Prokaryotic cell only</u>:
- The ribosome is 70s
- Translation occurs in the cytoplasm
- There are multiple ribosome binding site
Explanation:
- AUG is the common start codon for both eukaryotic as well prokaryotic cells. In eukaryotic cell, it codes for methionine . While in prokaryotic cell, it codes for formyl methionine.
- In prokaryotic cell, ribosomes are found in cytoplasm, hence the translation occurs in cytoplasm.
- Eukaryotic ribosome consists of two subunits; 40s and 60s(larger subunit)
- Prokaryotic ribosomes have 70s ribososme, which consists of 50s and 20s subuints
- in eukaryotic cell, 40s ribosome initially binds to the cap at the 5' end of mRNA.
- Bacterial mRNA contain multiple ribosome binding sites.
No, Humans take evolution through selective breeding and genetically modified organisms.
A DNA molecule is like a ladder because there are two sides (the sugar-phosphate backbones of the two strands) and rungs (each rung being a pair of complementary bases). Twisted, because the molecule is twined in a coil called a helix - or rather, a double helix because there are two strands.
