Phương pháp nghiên cứu của Menđen gồm các nội dung theo trật tự:

1 – Sử dụng toán xác suất để phân tích kết quả lai.

2 – Lai các dòng thuần và phân tích các kết quả F1, F2, F3.

3 – Tiến hành thí nghiệm chứng minh.

4 – Tạo các dòng thuần bằng tự thụ phấn.         

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  “Why is Tony in prison?”

  “He _____________ of robbery.”

• Choose the best answer for the following sentence:

  “Where are Jack and Joseph?”

  “They __________ the boxes you asked for into the house.”
   

• Choose the best answer for the following sentence:

  “Where’s the old chicken coop?”

  “It ___________ by a windstorm last year.”
   

• Choose the best answer for the following sentence:

  “Whatever happened to that fortune-teller?”

  “I don't know. She _________ around here in a long time.”
   

• Choose the best answer for the following sentence:

  “Diana is a wonderful ballet dancer.” “She ______________ since she was four.”
   

• Choose the best answer for the following sentence:

  “What a beautiful dress you’re wearing!” “Thank you. It ___________ especially for me by a French tailor.”
   

• Choose the best answer for the following sentence:

  Edward was new on the job, but he quickly fit himself into the _____________ routine of the office.
   

• Choose the best answer for the following sentence:

  The Mayan Indians ____________ an accurate and sophisticated calendar more than seven centuries ago.
  
  

• Choose the best answer for the following sentence:

  When I woke up and looked outside, the landscape had changed. The ground had been lightly ___________ with a dusting of snow during the night.
   

• Choose the best answer for the following sentence:

  We can’t even walk in the storm. Let’s wait in the hallway where we’ll be ____________ the strong winds until things quiet down.