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luluwa_999

Member Since 25 Sep 2012
Offline Last Active Dec 26 2012 08:22 PM
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Topics I've Started

Threw ribosome or DNA

24 December 2012 - 04:55 AM

DNA and Ribosomes both of them are organelles . DNA is inherited from the partents and DNA in the eukaryotic cell ;it control the development of the cell and know how to function in the cell.DNA found in the nucleous and it allow DNA for replication.However, DNA after replication is doing transcribion to produce RNA. The pre-mRNA synthesized at the end transcription which need some modification after it complete the transcribition .the m-RNA move to the cytoplasm after it checked its transcribited.

mRNA carry copies of genetic meterials that are used to assemble amino acids to produce proteins/polypeptide chains.However, Ribosome for eukaryotic cell is found in the cytoplasm and the active ribosome contain of r-RNA +protein. The ribosome have catalytic properties and it has its own structure . Ribosome (two subunits) hold the m-RNA. The t-RNA(is
small ribosomal subunit to recogize the5' of the m- RNA) The small ribosomal subunit scans RNA until it reaches the AUG codon and it combines both of the to large and small subunit to produce protein.That's why I dont know which one to threw it , both of them are important without DNA there is no RNA for ribosome to make protein and without prothein there is no function.

 
Thats what I know , thank you . I read many biology websites and campbell biology 9th edition to figureout the question. but I didn't find something that give me a hint.   http://www.sysbio.or...re1hswfinal.pdf

Choose Ribosome or DNA

23 December 2012 - 05:20 AM

Hello All,
I was wondering if anyone  help me to answer  this question which is;
If  you are a cell and  I told you to threw one of these organisms which is ribosome or DNA. Which one you will choose and why?
Thanks All



Luluwa

Plz Somebody help to answer these question in biology

25 September 2012 - 05:21 AM

Discuss these question in useful as scientific hypotheses and give if it could be falsified and what factors are measurable and controllable:

1.   Sea turtles are  likely to hatch at the period of the new moon.
2-.   Drinking coffee a day decreases the risk of heart disease in women.
3.   Manatees and elephants have  a same  ancestor.
4.   Organic food is healthier than the other types of  food.

Questions:Answer them in scientific way:
1-   How effective are extracts of marigold and rosemary as mosquitoes repellents?
Thank You

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