Define the term retroviruses
Define the term retroviruses? Explain how they reproduce and what is the role of enzyme reverse transcriptase?
Expert
Retroviruses are the viruses whose genetic material is RNA. HIV and the virus of SARS (that is, severe acute respiratory syndrome) are illustrations of retrovirus. Such viruses inoculate their RNA into host cell and in the cell, viral RNA is reversely transcripted into the DNA. DNA made up from the viral RNA then commands the synthesis of viral proteins for assemblage of new viruses and the breaking of host cell to release them outside. The enzyme reverse transcriptase is the catalyst of reverse transcription of RNA into DNA. Enzyme is a part of the virus and it is as well inoculated into host cell.
How dissimilar are the respiration in fishes and the respiration in adult amphibians?
Write down the functional divisions of nervous system?
Importance of leadership The following importance of leadership is prescribed as followings point: Facilitating change:
What are the three steps in determining whether a business decision is ethical or not ?
Name the bones in which bone marrow is mainly found? Is the bone marrow made up of osseous tissue?
Explain some morphological features which distinguish the beings of the phylum Annelida from nematodes and platyhelminthes?
Is embryonic development in earthworms indirect or direct? Answer: In earthworms there is no larval phase; therefore the embryonic development is direct.
Explain, how does the swim bladder of fishes work permitting the fishes in order to control their depth under the water?
Give a brief description of Haversian canals and Volkmann’s canals of bones? Is osseous tissue vascularized?
What preventive measures must be taken for Influenza?
18,76,764
1943939 Asked
3,689
Active Tutors
1448224
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!