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⏱ وقت الرسالة: 2026/07/10 - 04:42:31 AM
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https://t.me/CODING_ly/8073
حد يتبرع ويقولي وين موجوده
وان شاء الله في ميزان حسناتكم
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Histidine is an effective physiological buffer because its side-chain pKa is approximately:
An amino acid has pKa values 2.2, 4.3, and 9.7. Which pKa values are used to calculate its pI?
The metabolic pathway responsible for the synthesis of glucose from precursors is called:
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At alkaline pH, the amino group of an amino acid is:
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Oxidation of cysteine results in the formation of:
تريك بسيط ماهوش صعب
The DNA sugar (pentose) has which of the following formula?
