Sci Chapter 2 Lesson 3
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- What was Gregor Mendel known for?
- studied inheritance in pea plants
- What is DNA?
- the material that makes up chromosomes and carries information about inheritance
- What was Thomas Hunt Morgan known for?
- experiments with fruit flies
- What was Rosalind Franklin known for?
- produced pictures of DNA molecules
- What were Francis Crick and James Watson known for?
- built a model of DNA structure
- Name two results of selective breeding in crops.
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-crops are bigger
-crops resist pests and diseases
-stay fresh longer
-taste better - How might disease resistant crops help farmers? 2 examples
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-better, bigger harvests
-less need for chemical sprays to fight disease
-less time spent working in fields - Why do you think that breeding plants or animals to produce certain traits is called selective breeding?
- they are selected for certain desirable traits.
- How are genes and chromosomes related?
- genes are sections of chromosomes
- Why were pea plants chosen?
- They are small, easy to grown and produce many offspring each year.