What are some jokes that can only be understood with certain biological knowledge?

1 In high school, girls asked boys, "Is it the departure of leaves, the pursuit of the wind, or the retention of trees?"

The boy said, "It's abscisic acid."

The girl left him. A few years later, they met again, and both of them were less immature and more mature.

The girl asked, "Is the departure of leaves the pursuit of the wind or the failure of the tree to retain?"

The boy said, "Sorry, it's mainly ethylene."

At the meeting of the Soviet Academy of Sciences, biologist lysenko refuted Morgan's genetic theory and advocated his "acquired genetic theory"

Go up. " Landau, a famous physicist, stood up and asked, You mean, if we cut off a cow's ear and put it in

The ears of future generations are also cut off, so that one day we can cultivate a cow without ears?

Lysenko replied: Yes, that's right.

Landau said: Very good. Then please explain why women are born virgins.

A doctor of biology died unexpectedly and became a ghost. After he was persuaded, the mage saved his life and asked him, young man, what are you going to do after super life? A: Ultrasound? Centrifuge the supernatant after ultrasound and put it on a nickel column!

The mage shook his head and said, "Young man, I think your qualifications are good. Do you want me to train you? " A: "Training? You have no serum and no 1640. What can you do to train me? "

The mage was furious and said, "Are you bent on going to hell? All right, eighteen layers of hell are extremely hot, just pick one. " A: "Which hell is 95-60-72 degrees?"

The mage said, "Aren't you afraid that I will beat you into a ghost?" ? Wild ghosts? Dr. Biology asked.

The mage and doctor of biology said, "I heard that Tang Sanzang is going to the Western Heaven to learn from the scriptures. Why not go to the western tribes to reincarnate and meet Tang Sanzang?" . The doctor of biology said, "I'm afraid I won't recognize the monk because I'm not good at westernblot."

The mage asked the doctor of biology, "How did you die"? The doctor of biology said, "When I was swimming, I was struck by lightning and electrocuted. . "。 The mage asked, "Is the girl's name Ning Jiao?"

Host: Come on! Tie this evil spirit to the post!

Doctor of Biology: It is very important to load the column, otherwise it will affect the efficiency of purification and recovery. I suggest you buy imported columns.

Host: Come on! Cut this evil ghost!

Doctor of Biology: What enzyme is used? EcoRI or HindIII?

Host: I must give you some color to see see!

Doctor of Biology: What color is it? Methyl green? Piron? Congo red? Gentian violet or fuchsin acetate?

Master: Grind him with a millstone!

Doctor: Homogenizer, mortar or ball mill? Remember to add liquid nitrogen. It's too hot here and it will hydrolyze.