3 Genes and Heredity

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Transcript 3 Genes and Heredity

#1 What is this diagram showing?
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What do you know about this?
2-3 sentences
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#2
Examine the picture of MITOSIS and
MEIOSIS. Look carefully -- What differences
do you see?
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MITOSIS happens in normal body cells all over
your body. MEIOSIS also happens in the human
body but is much more unique and special – what
do you think is the purpose of that kind of cell
division?
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#3 Genes and Heredity
•Heredity is the passing of genes from one generation to the next. You inherit
your parents' genes. Heredity helps to make you the person you are today: short
or tall, with black hair or blond, with brown eyes or blue.
•Can your genes determine whether you'll be a straight-A student or a great
athlete? Heredity plays an important role, but your environment (including things
like the foods you eat and the people you interact with) also influences your
abilities and interests.
What is heredity? Explain in your own words:
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What do you think determines your abilities and interests MORE: Heredity and
your genes -OR- your environment around you? Explain WHY you think so.
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#4 - MUTATIONS
•A person can have changes (or mutations) in a gene that can
cause many issues for them. Sometimes changes cause little
differences, like hair color. Other changes in genes can cause
health problems.
•Mutations in a gene usually end up causing that particular gene
copy to not do its job the way it normally should. Since we have
two copies of every gene, typically there's still a "normal"
working copy of the gene. In these cases, usually nothing out of
the ordinary happens since the body can still do the jobs it needs
to do.
What is a MUTATION?
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Should people be AFRAID of mutations? Yes or No?
HIGHLIGHT SENTENCES in the PARAGRAPHS that
supports your answer. Use RED.
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