Search found 14 matches

by tittu
Tue May 27, 2008 2:45 pm
Forum: Molecular Biology
Topic: Plasmid question
Replies: 3
Views: 3532

Re: Plasmid question

pBCSK, a phagemid has the T7 promotor in the MCS. I am uploading its map here. Would this alter your response?
pBC_SK_plus.jpg
Please check this out
by tittu
Tue May 27, 2008 2:36 pm
Forum: Cell Biology
Topic: IBO 2003 questions- please help me out
Replies: 9
Views: 13926

Re: IBO 2003 questions- please help me out

I just saw this, regarding question B, ADP+ADP=ATP+AMP really happens in muscles, catalyzed by adenylyl kinase.
Talk about eating words...... :oops: Probably blcr11 is correct.
by tittu
Tue May 27, 2008 2:36 am
Forum: Molecular Biology
Topic: Plasmid question
Replies: 3
Views: 3532

Plasmid question

Which of the following is just a cloning plasmid and not an expression plasmid? pBAD 18- Cam pBCSK pUC 18 pET This came in a medical college entrance exam i gave. Iv'e lookedit up later, and found pET, pBAD and PUC are surely expression systems. However, though listed under cloning vectors in strata...
by tittu
Tue May 27, 2008 2:29 am
Forum: Genetics
Topic: Blood group inheritance, IBO 2007 question
Replies: 9
Views: 12365

Re: Blood group inheritance, IBO 2007 question

Hm, I saw it in a doc file I downloaded from a national biology olympiad website, (Argentinian, or portuguese, methinks). The file carried the part B questions. If you want to check, it began with questions about ovulation, hormonal control of menstrual cycle and the likes. Dont you get the author s...
by tittu
Sun May 25, 2008 2:46 am
Forum: Cell Biology
Topic: Macroscopic imaging of luciferase cells
Replies: 2
Views: 2667

try a 1 hr exposure and it must be totally dark all around when you expose, if not, longer :)
by tittu
Sun May 25, 2008 2:06 am
Forum: Genetics
Topic: Blood group inheritance, IBO 2007 question
Replies: 9
Views: 12365

Blood group inheritance, IBO 2007 question

A man whose blood group is Type A has two boys. The plasma of one of the boys agglutinates the red cells of his father, but the plasma from the other son does not. Which combination of the following statements.is correct? I. The father must be heterozygous for the A blood type allele. II. The mother...
by tittu
Wed May 14, 2008 3:14 am
Forum: Cell Biology
Topic: IBO 2003 questions- please help me out
Replies: 9
Views: 13926

I found a tool at Expasy m called ConSurf m whose job was "Projection of evolutionary conservation scores of residues on protein structures " running polymerase and histone H1 (the DNA linker in nucleosome model outside octamer), , i got the following degree of conservancy scores: ..polyme...
by tittu
Tue May 13, 2008 4:32 pm
Forum: Botany Discussion
Topic: C3 and C4 plants
Replies: 38
Views: 384526

Bringing alive this old thread, If you keep a c3 plant and a c4 plant under the same bell jar, adequate licght, then what happens to the co2 conc in the jar? a. [co2] drops to co2 compensation point of c3 plant b. [co2] drops to co2 compensation point of c4 plant c. [co2] goes on decreasing. d. [co2...
by tittu
Tue May 13, 2008 2:20 am
Forum: Genetics
Topic: Inheriting Chromosomes
Replies: 6
Views: 2941

Total possibilities = 2^22 = 4194304 , because any one of your 22 maternal autosomes has 2 possible sources. Favourable cases = 22C8 (the binomial coefficient, factorial 22/(factorial 8 x factorial 14) ) = 319770 (ways to select which 14, or which 8 from where.) So total probability = (319770/2^22) ...
by tittu
Tue May 13, 2008 1:43 am
Forum: Molecular Biology
Topic: Gene methylation
Replies: 2
Views: 2541

you use biolistics (gene gun), microinjections etc..
by tittu
Tue May 13, 2008 1:41 am
Forum: Molecular Biology
Topic: Ingesting Cholsterol
Replies: 5
Views: 4813

You can also chk biochemistrybooks like Harper, Lehninger for thorough information. Harper is better for physiology related issues, because its for medical students ....
by tittu
Tue May 13, 2008 1:24 am
Forum: Cell Biology
Topic: Cell Cycle Check points
Replies: 4
Views: 3780

Re: Cell Cycle Check points

G2 checkpoint checks for errors in replication,if any.