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Published byMartha Joseph Modified over 8 years ago
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Genetics Why do organisms look or behave in certain ways? Why do kids look similar to their parents? https://www.youtube.com/watch?v=B_PQ8qYtUL0
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Traits Traits are a feature you inherit. Traits are passed from parents to offspring. Sexually reproduced organisms are a unique blend of both parent’s traits
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Traits can be physical or behavioral. Physical traits in animals can include features such as wings, claws, fur, which may provide advantages for that organism, we call these adaptations.
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Or the physical traits may just influence the appearance of an organism such as eye color, hair color, or right/left handedness.
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Behavioral traits may include actions such as nest- building, swimming, or migrating. Human behavioral traits can include being diurnal, flinching, and the moro-reflex
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Traits can be used for security to identify each unique person.
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So how does each trait get passed from parents to form in an offspring? Your DNA provides the instructions for your types of traits.
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Your body is made of trillions of cells, each one with a nucleus.
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Inside each nucleus are 46 chromosomes.
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You got 23 from mom, 23 from dad
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Chromosomes are made of many genes
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A gene is a long section of DNA (deoxyribonucleic acid) DNA http://abcnews.go.com/blogs/business/2013/04/letter-on-dna-structure-sells-for-record-5-3-million/
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Put these in order, largest to smallest Answer: Cell Nucleus Chromosome Gene DNA
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Label your picture
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What is DNA and how does it work? https://www.youtube.com/watch?v=zwibgNGe4aY
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Ribosomes “read” the DNA and make proteins Proteins make up all the cells and structures of your body (fingernails, skin, muscles, etc.) Proteins also make enzymes which help chemical reactions, like digestion, occur in your body. https://www.youtube.com/watch?v=tI69AVRW 0DUhttps://www.youtube.com/watch?v=tI69AVRW 0DU what are enzymes
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Every inherited trait is controlled by one or more proteins
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DNA and our genes are a code for making proteins which make our traits
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Traits – including hair color and poor eyesight, are passed from generation to generation
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Traits are passed from parents to offspring in different combinations each time.
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Making you one of a kind!
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Mascot Bracket 2016! Who has the winning traits? Make your group predictions and turn in your bracket by 1pm today! http://www.sbnation.com/lookit/2016/3/16/1 1245126/2016-ncaa-tournament-mascot- deathbracket
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What is a gene? https://www.youtube.com/watch?v=5MQdXjRPHm Q https://www.youtube.com/watch?v=5MQdXjRPHm Q
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