USMLE forum
 
USMLE Forum
Step 1
Step 2 CK
Step 2 CS
Matching & Residency
Step 3
Classifieds
 
Archives
 
 
  <<   < *  Step 1   *  >   >>  

* nbme 5 block 2 -q1 to q 50
 #576897  
  drona99 - 03/28/11 02:43
 
  please choose ur q and post the answers .thank you :)  
Report Abuse

 
 

* Re:nbme 5 block 2 -q1 to q 50
#2365363
  maryam2009 - 03/28/11 02:50
 
  hi there,I already made one and wrote 2 Qs
but I will transfer them to this block.

1.E
Fc fragment..... is a complement binding region.
1...variable light chain domain
2...constant light chain
5...variable gama heavy chain
6...constant gama heavy chain


2.D
Respiratory burst:activation of memberane bound NADPH oxydase in neutrophils and macrophages plar an important role in the immune response.,,,,,,,rapid release of reactive oxygene speces,,,,O2.....>O2 radicals

Chronic granulomatous disease is associated with NADPH oxidase deficiency
 
Report Abuse

* Re:nbme 5 block 2 -q1 to q 50
#2365365
  maryam2009 - 03/28/11 02:52
 
  3.F

carrier frequency for male and female is 1/30
so if male and female from same population marry that means each of them being carrier will be 1/30 X 1/30
and if they have children then chance of kid getting disease will be 1/4
so
1/30X1/30X1/4= 1/3600

posted by drona99
 
Report Abuse

* Re:nbme 5 block 2 -q1 to q 50
#2365367
  maryam2009 - 03/28/11 02:55
 
  4.D
when the lytic phage infects the E.coli (transduction) the clevage of bacterial DNA and synthesis of viral protein will be hapened then parts of bacterial DNA become package in viral capsis...the new phage with new genes can infect another bacterium and transfer these new combination of genes to another bacterial DNA so because of this new comination the primary gene T7 does not exist anymore
 
Report Abuse

* Re:nbme 5 block 2 -q1 to q 50
#2365368
  maryam2009 - 03/28/11 03:10
 
  5.D
Diabetic type I
DKA.....Beta-hydroxybutyrate is an organic acid and also known as one of the ketone bodies
 
Report Abuse

* Re:nbme 5 block 2 -q1 to q 50
#2365370
  maryam2009 - 03/28/11 03:20
 
  6.B
The defective copies are covalently marked for destructon by the addition of multiple copies of ubiquitin......polyubiquinted proteins are directed to proteasomes for destruction.
 
Report Abuse

* Re:nbme 5 block 2 -q1 to q 50
#2365371
  maryam2009 - 03/28/11 03:27
 
  7.B
Individuals with underlying diabetes or disorders of the immune system are more likely to develop complications, including malignant otitis externa. In these individuals, rapid examination by an otolaryngologist (ear, nose, and throat physician) is very important.

Chronic otitis externa
Spread of infection to other areas of the body
Necrotizing external otitis

http://upload.wikimedia.org/wikipedia/commons/9/94/OtitisExterna10.JPG
 
Report Abuse

* Re:nbme 5 block 2 -q1 to q 50
#2365374
  drona99 - 03/28/11 03:36
 
  hey im so sorry i didnt see that u already made it..it was on previous page ..sorry again:(  
Report Abuse

* Re:nbme 5 block 2 -q1 to q 50
#2365377
  drona99 - 03/28/11 03:43
 
  hey 7 is dd
plz check out --its malignnat otitis externa
 
Report Abuse

* Re:nbme 5 block 2 -q1 to q 50
#2365378
  drona99 - 03/28/11 03:45
 
  lol ur explanation says its dd but u always post wrong alphabet..lol  
Report Abuse

* Re:nbme 5 block 2 -q1 to q 50
#2365379
  maryam2009 - 03/28/11 03:47
 
  it is okay.

8.D
Transposons are sequences of DNA that can move or transpose themselves to new positions within the genome of a single cell. The mechanism of transposition can be either "copy and paste" or "cut and paste". Transposition can create phenotypically significant mutations and alter the cell's genome size

Genetic recombination is a process by which a molecule of nucleic acid (usually DNA, but can also be RNA) is broken and then joined to a different one. Recombination can occur between similar molecules of DNA, as in homologous recombination, or dissimilar molecules, as in non-homologous end joining.
 
Report Abuse

          Page 1 of 6     [Next >]     [Last >>]

[<<First]   [<Prev]  ... Message ...  [Next >]   [Last >>]

 
Logon to post a new Message/Reply
 
 
 
 

 

 

Google
  Web USMLEforum.com
 

Step 1 Step 2 CK Step 2 CS Matching & Residency Step 3 Classifieds
LoginUSMLE LinksHome