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  #61  
Old Monday, October 19, 2009
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Default what about the following abbreviations?
DNA
cDNA
mRNA
rRNA

?????
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  #62  
Old Monday, October 19, 2009
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Quote:
Originally Posted by drmkshahzed View Post
DNA
cDNA
mRNA
rRNA

?????



cDNA (complementary DNA)
Single-stranded DNA that is complementary to messenger RNA or DNA that has been synthesized from messenger RNA by reverse transcriptase

mRNA (messenger RNA)
The template for protein synthesis; the form of RNA that carries information from DNA in the nucleus to the ribosome sites of protein synthesis in the cell


(rRNA) Ribosomal RNA
It is the central component of the ribosome, the protein manufacturing machinery of all living cells. The function of the rRNA is to provide a mechanism for decoding mRNA into amino acids and to interact with the tRNA during translation by providing peptidyl transferase activity. The tRNA then brings the necessary amino acids corresponding to the appropriate mRNA codon.






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  #63  
Old Monday, October 19, 2009
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DNA --> Deoxyribonucleic Acid
CDNA --> Complementary Deoxyribonucleic Acid or in short Complementary DNA
RNA --> Ribonucleic Acid
MRNA --> Messenger Ribonucleic acid or in short Messenger RNA
RRNA --> Ribosomal Ribonucleic Acid or or in short Ribosomal RNA.

Click here for there differences/more info
http://answers.yahoo.com/question/in...8082823AA1Bw4W
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  #64  
Old Wednesday, October 21, 2009
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Default universal recipient is AB
the ans to mcq given in eveyday sci paper asking 4 universal recipient is AB+. Bcz this blood group contains two antigens A n B n none of the antibodies. whenever , there is blood transfer, donor's antigens coaggulate with receiver's antibodies, if the blood groups r not compatible. but, as there r no antibodies in AB , so there is not any agglutination n AB cn receive blood frm any group.
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  #65  
Old Wednesday, October 21, 2009
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sorry the universal recipient is ab while the universal donor blood group is O-ve.

what is cytogenetics?
Last edited by Princess Royal; Wednesday, October 21, 2009 at 05:51 PM.
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  #66  
Old Thursday, October 22, 2009
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as i hv already mentioned that donor's antigens agglutinate with recipient's antibodies, same is the case here.blood group O- does not contain any antigens but contains antibodies A,B n Rh antibodies..so, O- is universal's donor.but,ab+ contains another Rh antigen, in addition 2 A,B antigens,due 2 which it is called as +(remember, ab- is the one without Rh antigen but with antibody) n also universal recipient.
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  #67  
Old Friday, October 30, 2009
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Dear Brother,
Check out this answer.....


(37) Monsoon is caused by:

a. Seasonal reversal of winds
b. Revolution of earth
c. Movement of clouds
d. Rise in temperature
e. Rain forests

The Correct Answer is (a- Seasonal reversal of winds causing monsoon).

Monsoon, winds that changes direction with the change of seasion. It blows from the southwest, generally from April to October, and from the opposite direction, the northeast, from October to April.
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  #68  
Old Friday, December 11, 2009
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u are right to an extent but actually AB positive is universal recipient as it can also recieve blood with Rh negative as well as positive..and O negative is universal donor
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  #69  
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ans to 8 mcq is non of these as it has not been yet established whether its is sex linked or autosomal but otherwise it wud me 1/4
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Old Friday, December 11, 2009
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more over it is also not known how many allels do diabetes have as it is not completely a genetic diesease and other factors also contributethe ques here is not abt genes but the diesease so try to see it from that point of view
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