Login

Join for Free!
117102 members


Answer this !!

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

Moderator: BioTeam

Postby Dr.Stein » Sun Jan 22, 2006 12:24 pm

opuntia wrote:And "crabs" mean cancer?

:lol: I already know this joke but I still can't stop laughing everytime I remember :lol:

I think I came late to the test, means that I do not necessary to do them eh? :)
Image
User avatar
Dr.Stein
King Cobra
King Cobra
 
Posts: 3501
Joined: Thu Jul 07, 2005 7:58 am
Location: 55284 Yogyakarta, Indonesia

Postby opuntia » Sun Jan 22, 2006 12:30 pm

Since you are too late that means you won't get any marks, right, Sir Victor? :lol:
"The roots of education is bitter, but the fruit is sweet" Aristotle
User avatar
opuntia
King Cobra
King Cobra
 
Posts: 538
Joined: Wed Jun 15, 2005 6:39 am
Location: Maldives(the chain of islands)

Postby victor » Sun Jan 22, 2006 12:37 pm

Okay..I'll give the late person a makeup test... :lol:
which of these virus family that cause dissease named chicken pox??
a. Hepadnaviridae
b. Retroviridae
c. Herpesviridae
d. Poxviridae
e. Adenoviridae
Q: Why are chemists great for solving problems?
A: They have all the solutions.
User avatar
victor
King Cobra
King Cobra
 
Posts: 2668
Joined: Sat Apr 30, 2005 12:01 pm
Location: Yogyakarta, Indonesia..


Postby opuntia » Sun Jan 22, 2006 12:44 pm

c is the correct answer!
"The roots of education is bitter, but the fruit is sweet" Aristotle
User avatar
opuntia
King Cobra
King Cobra
 
Posts: 538
Joined: Wed Jun 15, 2005 6:39 am
Location: Maldives(the chain of islands)

Postby victor » Sun Jan 22, 2006 12:50 pm

Yo...you're right fella...:lol:
and now, for a lil bit hard one..
HIV have a +sense RNA that can act as mRNA for protein translation...but in the replication process, it doesn't do that...explain why and describe the pathway it use..
Q: Why are chemists great for solving problems?
A: They have all the solutions.
User avatar
victor
King Cobra
King Cobra
 
Posts: 2668
Joined: Sat Apr 30, 2005 12:01 pm
Location: Yogyakarta, Indonesia..

Postby opuntia » Sun Jan 22, 2006 12:55 pm

That's too tough for me...coz i haven't studied that yet, so i give up for now but will come up with the answer when i learn them :D

PS: has it got anything to with the virus having reverse transcriptase?
"The roots of education is bitter, but the fruit is sweet" Aristotle
User avatar
opuntia
King Cobra
King Cobra
 
Posts: 538
Joined: Wed Jun 15, 2005 6:39 am
Location: Maldives(the chain of islands)

Postby victor » Sun Jan 22, 2006 1:12 pm

actually you can answer it...just see the picture of HIV in my signature...it helps you a lot...
a clue: +sense RNA virus that use it's RNA as mRNA can be classifid into ssRNA (single stranded RNA, or in other words, haploid RNA)...happy answering..:lol:
Q: Why are chemists great for solving problems?
A: They have all the solutions.
User avatar
victor
King Cobra
King Cobra
 
Posts: 2668
Joined: Sat Apr 30, 2005 12:01 pm
Location: Yogyakarta, Indonesia..

Postby Nite » Tue Jan 24, 2006 3:59 pm

ds DNA is formed from the +RNA by reverse transcriptase. The ds DNA is then incorporated into the host chromosomal DNA and the virus enters lysogeny cycle.

It's a characteristic of retrovirus as u mention before?

why it does so? guess it does that so that it can be incorporated into the host DNA?

hehe. i just had a lecture about HIV today :D .
i m a newbie in virology :oops:

btw, wad does GAG and GP in the HIV diagram stand for?
Go as far as you can see, and when you get there you will always be able to see farther.
User avatar
Nite
Death Adder
Death Adder
 
Posts: 67
Joined: Sun Aug 14, 2005 1:02 pm
Location: blue planet

Postby victor » Wed Jan 25, 2006 11:31 am

Yup, that's the "common" characteristics of retroviruses....why I call it common??because there're three subfamilies of retroviruses: Oncovirus, Lentivirus and .....virus..(argh, I forgot the name)..poor me.. :(
Why it does so? because according to Baltimore virus' classification, retroviridae is classified into dsRNA with DNA intermediate (reverse transcriptase) which has a diploid RNA attached to reverse transcriptase enzyme for each of them....and also, in order to do capsid "uncoating", they have to do so..
gag is a code for virion's protein construction.
gp = glycoprotein... :lol: so, gp120 = glycoprotein code 120...
easy isn't it.. :lol:
don't say like that Nite, because I'm also a newbie in Virology and now, I'm learning for the next virus which is Herpesvirus.. :D
Q: Why are chemists great for solving problems?
A: They have all the solutions.
User avatar
victor
King Cobra
King Cobra
 
Posts: 2668
Joined: Sat Apr 30, 2005 12:01 pm
Location: Yogyakarta, Indonesia..

Postby victor » Thu Jan 26, 2006 9:35 am

And now, for the next question..:lol:
I've just read about EBV or in other words every body's virus..:lol: (it's real name).
Now, if EBV crates Lymphoblastoma on B-cell and affecting of excesses IgM antibody secretion, then why it's said than EBV is harmful for us?? more antibody is better isn't it??:lol:
Q: Why are chemists great for solving problems?
A: They have all the solutions.
User avatar
victor
King Cobra
King Cobra
 
Posts: 2668
Joined: Sat Apr 30, 2005 12:01 pm
Location: Yogyakarta, Indonesia..

Postby Dr.Stein » Thu Jan 26, 2006 12:18 pm

Naah. The excessive IgM and IgG is because of the excessive VCA/EBV/EBNA. You know the immune response... If you want to get those immunoglobulins for more, ok ok I will inject you with more EBV, agree? :lol: Maybe you want to experience how is the feeling of suffering mononucleosis, Burkitt's lymphoma and nasopharyngeal carcinoma. Come to me my dear, I still have some vials of EBV mwahahahaa :twisted: :lol:
Image
User avatar
Dr.Stein
King Cobra
King Cobra
 
Posts: 3501
Joined: Thu Jul 07, 2005 7:58 am
Location: 55284 Yogyakarta, Indonesia

Postby victor » Thu Feb 02, 2006 12:14 pm

the answer is excessive on IgM can cause erythrocyte aglutination..hahaha..and beside, the infected B-cell secretes an IL-10 like protein that cause inhibition of IFN-gamma secreation in T-cell and NK-cell..
Q: Why are chemists great for solving problems?
A: They have all the solutions.
User avatar
victor
King Cobra
King Cobra
 
Posts: 2668
Joined: Sat Apr 30, 2005 12:01 pm
Location: Yogyakarta, Indonesia..

PreviousNext

Return to Microbiology

Who is online

Users browsing this forum: No registered users and 0 guests

cron