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BiotechnologyBiotechnologyWhy is science not a stagnant study?
Ch. 1.4 (pp. 19-23)
Why is science not a stagnant study?
Ch. 1.4 (pp. 19-23)
Learning Target: BiotechnologyI Can...Describe examples of frequently improving technology and infer how their use yields new information to be evaluated.
I Will…• Compare and contrast different types of
microscopes, and medical imaging techniques.
• Discuss the use of computer models to study biological systems.
• Describe ways in which the use of DNA has impacted biological sciences.
Why does science continually need to reevaluate our body of scientific
knowledge?
• New information and new discoveries add to our understanding of life and existing knowledge base.
• This means it can change what we thought we knew!
Imaging technologies • Provide new views of life• A microscope provides an enlarged
image of an object for deeper study.
Imaging technologies • Provide new views of life• X-rays, CAT scans, and MRIs are used in
medicine.
Computed Axial Tomography(CAT Scan)
Complex systems are modeled on computers• Computer models are used to study
systems that cannot be studied directly.• Aides in:• Heart Attacks• Effects of medicines
on the human body• Movement of water
molecules out of a cell• Spread of a disease
through a populationComputer models are used when experiments are not safe, ethical, or practical.
New understandings of DNA allow us to study genetics at the molecular level.• Molecular genetics allows for genetic
engineering.• Genomics compares entire sequences of
DNA within and across species.• DNA testing is used in both medicine and
forensic science.