"New Technology of Biological Reproduction" PPT Courseware 2

Description

"New Technology of 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 the new technology of biological reproduction and the status of scientific research information in this field in my country.

4. Cultivate students’ ability to use various methods to conduct scientific investigations.

5. Cultivate students’ ability to collect and organize information.

6. By understanding the continuous progress of reproductive technology, cultivate the values ​​​​of loving science, and at the same time be aware of the benefits and possible negative impacts that science and technology will bring to human and social development.

Focus: Understand the possible impacts that cloning, embryo transfer, and genetically modified technologies may have on us.

Difficulty: Be aware that science and technology will bring benefits to human and social development, but it may also have negative impacts.

Academician Yuan Longping’s deeds

Academician Yuan Longping is an outstanding contemporary agricultural scientist in my country and the world-renowned "Father of Hybrid Rice". He has been working for more than 50 years, and has not been afraid of hardships, persistent pursuit, bold innovation, and courageous scaling of heights. The scientific research results he has achieved have made my country's hybrid rice research and application leading the world. The promotion and application not only solved China's food self-sufficiency problem, but also contributed to the world. made outstanding contributions to food security.

From 1976 to 1987, the total planting area of ​​hybrid rice he cultivated reached 1.1 billion acres, increasing rice production by 100 billion kilograms. In 1979, hybrid rice was my country's first agricultural technology patent transferred to the United States.

More than 20 countries and regions, including India and Vietnam, have introduced hybrid rice.

Yuan Longping's efforts also contributed to solving the world's food shortage problem.

Plant tissue cell culture process

1. Sterilization equipment: High-pressure steam sterilizer is used for sterilization of various instruments.

2. Inoculation equipment: Sterile ultra-clean workbench is used for disinfection and inoculation of culture materials.

3. Culture equipment—culture rack with fluorescent lamp.

Plant tissue culture: Separate a part of the plant body through aseptic operation and inoculate it on the culture medium, and cultivate it under artificially controlled conditions to generate a complete plant.

Embryo transfer: Also known as fertilized egg transfer, it is a technology that flushes the early embryos of one female animal out of the fallopian tube and transplants them into the fallopian tube of another female animal so that they can continue to develop into a fetus.

Advantages of embryo transfer: Rapidly increase the number of improved breeds, greatly improving reproductive efficiency and economic benefits.

Cloning: The process of using biotechnology to produce offspring through asexual reproduction that have identical genetic tissues to the original individual.

Space breeding is aerospace breeding, also known as space mutation breeding. It is to send crop seeds or mutagenic materials to space on return satellites or high-altitude balloons, using the special environmental mutagenesis in space to mutate the seeds, and then return them to the ground for cultivation. New techniques for breeding new crop varieties.

At present, only China, the United States, and Russia have successfully conducted “space breeding” research in the world.

The space breeding experiments of the United States and Russia are mainly to solve the problems of food supply for astronauts and maintaining the cabin environment during long-term flights.

Our country’s space breeding is to solve the problems of human life on earth. The variety, scope and achievements of China’s space breeding are unmatched by other countries in the world.

Keywords: Teaching courseware for new technologies in biological reproduction, Download the scientific PPT courseware for the second volume of the fifth grade in the E-education edition, Download the scientific slide courseware for fifth grade, Download the PPT courseware for new technologies in biological reproduction, .PPT format;

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"New Technology of Biological Reproduction" PPT download:

"New Technology in Biological Reproduction" PPT Download Part One: Dolly the Cloned Sheep 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..

"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:

"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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Update Time: 2024-09-30

This template belongs to science courseware E-education edition fifth grade science volume 2 industry PPT template

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