A qui định tính trạng trội hoàn toàn so với a qui định cây thân thấp. Viết sơ đồ lai Xác định kiểu hình, kiểu gen của các phép lai sau:
a) AA phép lai aa
b) AA phép lai
c) aa phép lai aa
d) AA phép lai Aa
e) aa phép lai Aa
g) Aa phép lai Aa

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point