اقتباس:
Gregor Mendel
Gregor Mendel was the first person to make precise observations about the biological mechanism of inheritance. This happened a little over 100 years ago in Austria, where Mendel spent his leisure hours performing experiments with pea plants of different types. He crossed them carefully and Look notes about the appearance of various traits, or characteristics, in succeeding generations. From his observations, Mendel formed a set of rules, now known as the Mendelian Laws of Inheritance, which were found to apply not only to plants but to animals and human beings as well. This was the beginning of the modern science of genetics.
اقتباس:
Gregor Mendel was the first person to make precise observations about the biological mechanism of inheritance
جريجور مندل هو اول شخص له ملاحظات دقيقة عن الالية البيولوجية لعلم الوراثة
اقتباس:
This happened a little over 100 years ago in Austria, where Mendel spent his leisure hours performing experiments with pea plants of different types
هالشي حصل قبل مية سنه في النمسا .. ابو مندل كل ماحصل نفسه فاضي جمع نبات البازلاء بمختلف
انواعه وقعد يجرب فيه نقرتين لعرض الصورة في صفحة مستقلة
اقتباس:
He crossed them carefully and Look notes about the appearance of various traits, or characteristics, in succeeding generations.
كان يراقبهم بعناية ويكتب ملاحظاته حول ظهور الصفات المختلفة والخصائص في الاجيال
المقبلة يعني يهجن ويحوس الدنيا ويشوف وش يطلع معه نقرتين لعرض الصورة في صفحة مستقلة
اقتباس:
From his observations, Mendel formed a set of rules, now known as the Mendelian Laws of Inheritance,
طبعا تكون عنده مجموعة من الملاحظات والقواعد معروفه الان باسم القواعد المندلية في علم الوراثة نقرتين لعرض الصورة في صفحة مستقلة
اقتباس:
which were found to apply not only to plants but to animals and human beings as well. This was the beginning of the modern science of genetics
هالقواعد لقوا انها ماتنطبق ع النبات بس بل تنطبق على الحيوان والانسان
ومعروفه باسم قواعد مندل الوراثية نقرتين لعرض الصورة في صفحة مستقلة
أسئلة القطعة
1. The importance of Gregor Mendel is that he was the first person to ______________
a. imagine that there existed a precise mechanism for inheritance
b. approach the problem of inheritance scientifically √
c. think about why animals and plants inherit certain characteristics
d. invent the word genetics
2. When did Mendel perform his experiments?
a. in ancient times
b. in the 1680s
c. in the 1860s
d. at the beginning of last century √
3. Why did Mendel do this work?
a. He formed a set of rules.
b. He enjoyed it. √
c. He lived in Austria.
d. He was paid for it.
4. The Mendelian Laws of Inheritance describe the transmission of biological traits in ___________
a. plants
b. animals
c. human beings
d. all of the above