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قديم 01-07-2009, 01:47 AM
سندباد النيل سندباد النيل غير متواجد حالياً
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Impp اي سؤال في البيولوجي حد عايز اي سؤال مهم جدا جدا

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طب أسأل انا الاول

If the sequence of nitrogenous bases in apiece of one strand of DNA molecule is:
3' CTAAAAGGCCAT 5'
and the codons for several amino acids are as follows:
AAA Lysine, CCG Proline
UUU Phenylalanine, UGC Cysteine
GAU Asparagine, CGC Arginine
GUA Valine,
Mention the amino acid sequences encoded to this DNA



another question

explain with drawing only the reflex action, then answer the following according to the diagram
a) What is the kind of the receptor according to site and type of stimuli
b) What are the types of nerve cells in the diagram and their functions
c) What is the type of reflex action, is it autonomic or somatic? And why
e) Compare between white matter and gray matter of spinal cord? According to (structure and function

try to answer
just try