Khi tiến hành lai hai giống thuần chủng hoa đỏ lai với hoa trắng. F1 thu được toàn đỏ, F2 thu được 3 đỏ : 1 trắng. Hiện tượng di truyền màu sắc hoa là?

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  The _____________ of economic sacrifice rests on the workers of the plant.
  
  

• Choose the best answer for the following sentence:

  He was admirably voted the most ___________ production manager of the year.
   

• Choose the best answer for the following sentence:

  Her ___________ was then terrible, and she could have hidden herself in a tomb.

• Choose the best answer for the following sentence:

  My readers have opportunities of judging for themselves whether the ____________ and tendencies which I distrust in America, have any existence not in my imagination.
   

• Choose the best answer for the following sentence:

  A number of Britain's beaches fail to meet European ______________ on cleanliness.
   

• Choose the word that has the underlined part pronounced differently from the rest:

  grasses             stretches                comprises                  potatoes

• Choose the best answer for the following sentence:

  Bathe the wound and _____________ a clean dressing.
   

• Choose the best answer for the following sentence:

  She runs a ______________ practice in the hospital Hull.
   

• Choose the word that has the underlined part pronounced differently from the rest:

  compound                 route                house                  south

• Choose the word that has the underlined part pronounced differently from the rest:

  dune                hummock                  shrub                   buffalo