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.
There have been sharp increase in birth to unmarried mothers in all the countries except in JAPAN. Recent research study on global children trend indicate that, the country where children are most likely to be reared by married parents is Japan, where giving birth to children out of wedlock is rare. The country also exhibit high marriage rate and cohabitation is rare.
Cell divison is necessary to replace cells that are worn and aging. Cells do not have an indefinite life span. Fo example, the life span of a red blood cell is about 120 days.
G . because the bat population will change with no bugs.
Answer:
Microfilaments, Intermediate filaments and microtubules
Explanation:
Three distinct elements make up the cytoskeleton in eukaryotic cells are:
1. Microfilaments or actin filaments which are composed of actin proteins. The functions of those filaments are: muscle contraction (myosin heads move “walk” on actin filaments), the movement of the cell, intracellular transport, maintaince of the cell shape..
2. Intermediate filaments which can be made of vimentins, keratin, lamin, desmin… Their functions are: the maintenance of cell shape, anchoring organelles, structural components of the nuclear lamina, cell-cell and cell-matrix junctions…
3. Microtubules are filaments polymers of alpha and beta tubulin. Their roles are in intracellular transport (associated with motor protein dyneins and kinesins), formation of the axoneme of cilia and flagella, formation of the mitotic spindle.
