Search found 10 matches

by revision
Thu Feb 20, 2014 1:40 am
Forum: General Discussion
Topic: What are potential project titles regarding stem cells?
Replies: 1
Views: 1937

What are potential project titles regarding stem cells?

What are potential project titles regarding stem cells? one that has contradictions between scientists?

for example neural stem cell therapy for Alzheimer's disease has been researched and discussed a lot.
by revision
Wed Feb 12, 2014 9:56 pm
Forum: Molecular Biology
Topic: Blood groups agglutination
Replies: 0
Views: 2764

Blood groups agglutination

By mixing test tube containing Group O cells, UDP-Gal, B-serum with group O serum why would there be agglutination?

Can someone please explain the biochemistry behind it?
by revision
Fri Feb 07, 2014 8:17 pm
Forum: Molecular Biology
Topic: An Investigation of ABO Group Antigen Structure question?
Replies: 1
Views: 5786

An Investigation of ABO Group Antigen Structure question?

Group O red blood cells have been incubated with either UDP-galactose or UDP-N- acetyl galactosamine together with group A, group B or group O serum for six hours at 37oC as follows: Tube 1 Group O cells UDP-NacG O-serum Tube 2 Group O cells UDP-Gal O-serum Tube 3 Group O cells UDP-NacG B-serum Tube...
by revision
Wed Mar 20, 2013 6:36 pm
Forum: Molecular Biology
Topic: Calculate the rate of sugar uptake question.
Replies: 1
Views: 2374

Calculate the rate of sugar uptake question.

Calculate the rate of sugar uptake in umol/g yeast/min for D-Glucose.

Ab 520 nm
D-Glucose

Time: 0 is 0.911
Time: 30 min is 0.345


Sugar uptake.
2.9 mL Kphos buffer pH 7.5
1 mL yeast suspension
0.1 mL 50 mM sugar
by revision
Thu Dec 13, 2012 9:33 pm
Forum: Molecular Biology
Topic: Drosophila genes
Replies: 1
Views: 1742

Drosophila genes

From which organisms is the following genetic elements derived?

UAS promoter
Options:
bacteria
drosophila
yeast

I think answer is drosophila

Beta-galactosidase
Options:
bacteria
drosophila
yeast

I think answer is bacteria

Gal-4
Options:
bacteria
drosophila
yeast

I think answer yeast
by revision
Tue Dec 11, 2012 6:38 pm
Forum: Molecular Biology
Topic: Help on biology question?
Replies: 0
Views: 2717

Help on biology question?

3,Imagine you had these two strains of drosophila: AA= contains the gene for Gal 4 and a UAS upstream of alcohol dehydrogenase BB= has a UAS upstream of Beta- Galactosidase What would you expect to be able to detect in the flies from the following crosses: AA X AA Options: A.Nothing B.Alcohol dehydr...
by revision
Tue Dec 11, 2012 12:02 am
Forum: Molecular Biology
Topic: Biology question help?
Replies: 5
Views: 5754

Re: Biology question help?

The answer must then be cytosolic proteins. I didn't know between option 1 and 4. am i correct now?
And is question number 1 correct i think it is option 1? :?
by revision
Sat Dec 08, 2012 6:24 pm
Forum: Molecular Biology
Topic: Biology question help?
Replies: 5
Views: 5754

Biology question help?

1,Imagine that in a e.coli culture that was growing with glucose as its nutrient source you could artificially increase cAMP levels (which are normally associated with starvation). What would happen to the expression of beta-galactosidase? Options: 1.It would be activated because the cAMP binding pr...
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Mon Nov 26, 2012 12:01 pm
Forum: Molecular Biology
Topic: RNA
Replies: 6
Views: 23958

I think the answer to question 2 is formation of chimeric proteins because insertion, deletion and substitution are possible consequences of RNA splicing.
by revision
Sun Nov 25, 2012 4:16 pm
Forum: Molecular Biology
Topic: Molecular bio questions
Replies: 2
Views: 2557

Molecular bio questions

Hi i need help with these two questions. 1, Gal 4 is a yeast transcription factor that binds to a specific DNA sequence referred to as UAS and it promotes RNA synthesis: True or false I think the answer for this is true 2, Polyadenylation of mRNAs occurs in both prokaryotes and Eukaryotes and it has...