Oncogenic viruses, are they DNA, RNA viruses. Are they capable of incorporation into host genes, are they capable of establishing new DNA sequences
2006-07-24 21:07:42 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Medicine
Yes, some oncogenic viruses (or oncoviruses) can incorporate into host genomes and establish new DNA sequences in the host cell.
By incorporating into host genomes, they can disrupt genes that regulate cell growth and differentiation. This can lead to cancer, which is unregulated cell growth.
2006-07-24 21:13:52 · answer #1 · answered by synergistic_insight 3 · 0⤊ 0⤋
2
2016-08-29 08:00:06 · answer #2 · answered by Ruthie 3 · 0⤊ 0⤋
First, there are many different types of "oncogenic" viruses. Some of these maintain a double stranded DNA genome while others maintain an RNA based genome. The classic DNA tumor virus is SV40 (simian virus 40), which has a DNA based genome. It carries tumor inducing genes such as the "large T antigen", but it does not incorporate into the host cell genome. On the other side of things, the retroviruses are RNA viruses and they do, generally, integrate into the host cell genome, after they have been reverse transcribed inside of the cell. These types of viruses include the human T-cell lymphoma virus, the feline leukemia virus, and many others.
2006-07-25 01:09:44 · answer #3 · answered by Gene Guy 5 · 0⤊ 0⤋
yes...DNA and RNA viruses can be oncogenic in nature...epstine bar viruse causes brukitt's lymphoma...hep b viruse causin liver cancer are good examples
2006-07-26 08:58:44 · answer #4 · answered by miss_inhuman 1 · 0⤊ 0⤋
A virus capable of inducing the formation of tumors.
2006-07-24 21:16:49 · answer #5 · answered by mariz s 2 · 0⤊ 0⤋
Yes. They are capable.
2006-07-24 21:11:08 · answer #6 · answered by The Knowledge Server 1 · 0⤊ 0⤋
Hep B n C
HPV
EBV
2006-07-26 15:14:26 · answer #7 · answered by darkangel09 2 · 0⤊ 0⤋