Đậu Hà Lan, hạt vàng là tính trạng trội hoàn toàn được quy định do gen A, hạt lục được quy định do gen a. Cho thụ phấn cây hạt vàng với cây hạt lục. a/ Xác định kết quả thu được ở F1.
b/ Đem lai cây ở F1 với nhau. Xác định kết quả thu được ở F2.

Which of the following choices is not an effective solution to the energy waste related to inefficient lighting? a. using low-pressure sodium lighting sources b. pointing lights on billboards and street signs upward c. placing light sources on time controls d. shielding light to direct it downward

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

In the presence of oxygen, glycolysis is followed a. the krebs cycle b. lactic acid fermentation c. alcoholic fermentation d. photosynthesis