Опубликовано 1 год назад по предмету Биология от NiKoTrO

Перечислите особенности человека как генетического объекта. Охарактеризуйте методы генетических исследований человека.

  1. Ответ
    Ответ дан tnastya2002
    Во-первых, у человека не может быть произведено искусственного направленного скрещивания в интересах исследователя. Во-вторых, низкая плодовитость делает невозможным применение статистического подхода при оценке немногочисленного потомства одной пары родителей. В-третьих, редкая смена поколений, происходящая в среднем через 25 лет, при значительной продолжительности жизни дает возможность одному исследователю наблюдать не более 3—4 последовательных поколений. Наконец, изучение генетики человека затрудняется наличием в его геноме большого числа групп сцепления генов (23 у женщин и 24 у мужчин), а также высокой степенью фенотипического полиморфизма, связанного с влиянием среды.Преимущества человека как генетического объекта:1)Большое кол-во особей в человеческих популяциях2)Международное сотрудничество между генетиками мира3)Человек лучше изучен клинически 
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