"New Technology of Biological Reproduction" PPT download

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Qingdao Edition Fifth Grade Science Volume 2	pptx	6 MB

"New Technology of Biological Reproduction" PPT download

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Upload Time: 2024-09-30

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"New Technology of Biological Reproduction" PPT download

Part One: Cloning the Sheep—Dolly

In 1997, British scientists announced the birth of Dolly the cloned sheep. This is a fatherless lamb, created from the cells of a ewe.

Briefly describe the process of cloning a sheep.

Answer: 1. Take a cell from the body of a sheep and take out the cell nucleus.

2. Take out an unfertilized egg cell from the ovary of sheep B and remove the nucleus.

3. Fusion of cell nuclei and anucleate cells to form embryonic cells, which are then implanted into the uterus of sheep B to develop into the little sheep "Dolly".

New technology of biological reproduction PPT, part 2: Why is Yuan Longping called the father of hybrid rice?

Answer: Yuan Longping is the founder of hybrid rice research in China and the first person in the world to utilize the hybrid advantages of rice.

What is the significance of Yuan Longping’s hybrid rice?

Answer: Yuan Longping's hybrid rice is hailed as the fifth greatest invention after China's four great inventions, and is also hailed as the second green revolution. It not only solves the Chinese people's eating problem. And solved the world famine problem.

homework

Observe the plants around you:

How do they continue to descend?

Keywords: Qingdao edition fifth grade science PPT courseware for the second volume free download, new biological reproduction technology PPT courseware, .PPT format;

For more information about the "New Technologies in Biological Reproduction" PPT courseware, please click on the "New Technologies in Biological Reproduction" ppt tab.

"New Technology of Biological Reproduction" PPT:

"New Technology of Biological Reproduction" PPT Part One Content: Data Card Dolly was born on July 5, 1996 at the Roslin Institute in the UK. This is a big event that shocked the world because it was cloned. Scientists believe Dolly's birth marks a new era in biotechnology...

"New Technology of Biological Reproduction" PPT Courseware 2:

"New Technologies in Biological Reproduction" PPT Courseware 2 Teaching Objectives 1. Understand new biological reproduction methods such as hybridization, plant tissue culture, and embryo transplantation. 2. Understand the latest biological reproduction methods such as cloning technology, space breeding, and genetic modification. 3. Understand new technologies of biological reproduction..

"New Technology of Biological Reproduction" PPT courseware:

"New Technology of Biological Reproduction" PPT courseware Yuan Longping: China's most famous farmer China awarded its highest science and technology award to a farmer-scientist who has been planting rice all his life, Yuan Longping, the father of hybrid rice in the world. From 1976 to 1987, he cultivated hybrid rice...

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"New Technology of Biological Reproduction" PPT download