I think you might be talking about GMO ( genetically modified organism)
Answer:
Plants can synthesize all twenty amino acids.
Explanation:
Hola!
Human skin are made from various tissue.
In us there are four basic types of tissue, That are :
→ Epithelial tissue
→ Muscular tissue
→ Nervous tissue
→ Connective tissue
[ note: There are many sub-tissues in human skin but mainly these four are considered ]
hope it helps!
Answer:
Mutations leading to the better attachement of virus to the host cell would allow the virus to spread the infection and leave more progeny. The reproductive fitness of mutant viruses would allow the mutation to spread.
Explanation:
1. The organisms with same resource requirement compete with each other. Viruses are not living things but once inside the host cell, they behave like living things. Rapid multiplication of virus overpopulate the host cells.
2. Genetic variations are added to the viral progeny by random errors during replication of the viral genome. These random variations may impart beneficial trait, harmful feature or remain neutral. If a random mutation in the SARS-CoV2 virus allows it to adhere better to the cells of the respiratory system, the virus would be better able to infect these cells to spread the infection. Once inside the host cells, the mutant virus would leave more progeny. On the other hand, the wild type virus that lack this mutation would have lesser chances of entering the host cells and may or may not replicate.
3. The progeny of the mutant virus would compete better with the non mutant ones due to the presence of same mutation.
4. Differential reproduction and more progeny of the mutant virus would spread the mutation among the virus.
Answer:
The approach of cytokinesis to form cleavage furrows does not work for the plant cells due to specific reasons. These reasons are -
The presence of a rigid outermost layer called cell wall in plant cells that do not allow for forming furrows.
Centrioles present in animal cells helps in maintaining the organisation of mitotic spindle and completion of cytokinesis, however, not found in plant cells. The Golgi vesicles secrets and makes a septum or cell plate in the equatorial plane of the cell wall with the help of microtubules and phragmoplast help in the separation of two daughter cells.
