The right option is Capsid
A capsid is a protein coat that
encloses the nucleic acid (RNA, DNA etc.) of a virus particle. Capsids are in different
shapes and the common ones are icosahedral, prolate, and helical. The main role
of the capsid is to protect the virus by ensuring that the nucleic acid inside
of it is safe.
Answer:
The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.
Answer:tailing at 3' end protects mRNA from attack by 3' exonuclease and 5' capping is useful for recognition of mRNA
Explanation:
The mRNA formed and released from the DNA template is known as primary transcript. In mammalian system, it undergoes intensive modification to become the mature mRNA.
Post transcription processing includes removal of Introns, splicing of exons, poly-A tailing at 3'end and capping at 5' end.
The Poly-A tailing at 3' end occurs in the nucleoplasm, the 3' end is polyadenlated involves with 20-250 nucleotides long. This tail protects mRNA from attack by 3' exonuclease activity
5' end capping end also is done in the nucleus. The cap is useful in recognition of mRNA by the translating machinery.
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Answer: Plant Cell</h2>
Explanation:
A plant cell is the only cell that has all these characteristics. The box-like structure is due to the cell wall, the large central vacuole which helps with the rigidity of the cell, and chloroplast which contains chlorophyll for photosynthesis.
