In the senior one biology research report, choose any biology topic

Biology Research Learning Theme Presentation.

1. Make a three-dimensional structural model of eukaryotic cells 2. Make a biofilm model from waste materials.

3. Make a reflection arc model 4. Investigate the differences in the traits of classmates.

5. Barrier effect of human body 6. Effect of different concentrations of cigarette extract on aquatic animals.

7. How much do you know about germs in different living environments 8. Factors that affect the growth and reproduction of bacteria.

9. Dietary research of our students 10. Cultivation of plants using soilless cultivation technology 11. Storage of grain seeds and preservation of fruits.

12. Design the hybrid breeding program between wheat varieties 13. Determine the respiratory quotient of seed germination.

14. Research on the richness of animal groups in soil 15. The harm of environmental pollution to organisms and its prevention.

16. Investigation of greening of new campus and its improvement measures 17. Effects of pesticides on frogs.

18. The indicative role of bryophytes on air pollution 19. Is it better to put more green bonsai in the bedroom?

20. Investigation and research on the hometown of Huangping's longevity.

Choice B because the non-allelic genes will be freely combined, in B the original genotype is AAB, and after the free combination, it is the arrangement of option B.

a, the original genotype is aabb, and after free combination, it should be ab ab ab

Well, no one has helped you, only on your own.

Answer B: This question examines the concepts of embryo engineering and embryo transfer. Embryo engineering refers to a variety of micromanipulation and processing techniques for early embryos or gametes of animals, including embryo transfer, in vitro fertilization, embryo segmentation, embryonic stem cell culture and other technologies.

Embryo transfer is actually the process of producing embryos from the donor and the recipient of the embryo to reproduce the offspring together.

Summary. 1.Trypsin needs to be sterilized for culture medium and culture utensils in a sterile environment.

Hello classmates. What's the title?

The title above.

Hold on. The one in the box above. Can you send it clearly**?

This is the clearest one, teacher o(o)o

1.Trypsin needs to be sterilized for culture medium and culture utensils in a sterile environment.

2. It can not only multiply in large numbers but also produce antibodies. Hybrid cells that test positive for antibodies.

3. Anti-FCF20 antibody can only bind specifically to cancer cell fibroblast growth factor.

Okay teacher, thank you, totozan (o o).

It's okay, <>

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