DNA fingerprinting, also called DNA profiling, is a method used to distinguish one individual's DNA from another's. It involves extracting DNA from samples like blood, semen, or hair, amplifying specific regions of DNA called short tandem repeats (STRs) using PCR, and comparing the STR profiles through gel electrophoresis. The number and length of repeats at different STR loci will vary between individuals, allowing a DNA profile to be obtained that can uniquely identify someone except for identical twins. DNA fingerprinting is used in forensic analysis to identify suspects by matching crime scene DNA samples to known individuals.
1. DNA fingerprinting (profiling) :
BY
dr: Mohammed Bahgat Mohammed Sofyan
Assistant lecturer of medical biochemistry, Faculty of medicine, Al-Azhar
university (Assiut branch)
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5. على ملفي في هنا أرفعها التي شرائحي ومذاكرة بالتعلم وأسعد وأرحب أسمح
Slide share website
وال
مانع
أيضا
من
نسخ
شريحة
او
اثنين
عند
الضرورة
،
وال
مانع
من
شرح
البوربو
ينت
الخاصة
بي
للغير
بشرط
عدم
إزالة
اسمي
من
البوربوينت
،
فال
أسمح
أبدا
بإزالة
اسمي
من
على
الباوربوينت
ووضع
اسمك
بدال
منه
لتصبح
وكأنك
من
صممتها
فهذه
سرقة
ال
أسمح
بها
وتضييع
لحق
من
تعب
في
عملها
.
وفقكم
هللا
وإياي
للتعلم
ونفع
اآلخرين
I allow, welcome, and be happy to learn and study my slides that I
upload here in my profile on Slide share website
There is also no objection to copying one or two slides when
necessary, and there is no objection to explaining my PowerPoint to
others on the condition that my name is not removed from the
PowerPoint. I never allow my name to be removed from PowerPoint
and to replace it with yours, Make it look like you designed it. This is
theft that I do not allow and a waste of the right of those who are
tired in this work. May God bless you and me for learning and
benefiting others
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8. •Although 99.9% of human DNA
sequences are the same in every person,
enough of the DNA ( 0.1%) is different
that it is possible to distinguish one
individual from another, unless they are
monozygotic (identical) twins.
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16. •Although 99.9% of human DNA
sequences are the same in every person,
enough of the DNA ( 0.1%) is different
that it is possible to distinguish one
individual from another, unless they are
monozygotic (identical) twins.
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17. Short Tandem Repeats (STRs(
•
ال
DNA
من يتكون
• Coding and noncoding DNA
•
ال معظم إن قالك
• coding DNA
•
،الناس كل في متشابه
ما نوعا
•
في وجدوا لكن
• Non coding DNA
•
فمثال ،مرات ست ،خمسة ،أربعة ،ثالثة ،مرتين يعني ،مرة من أكثر مكررة معينة مناطق به يوجد
• CGTA CGTA CGTA CGTA CGTA,.....
•
تسمي
• short tandem repeats (STRs)
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