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1/9 & 1/10 - 7 th Grade Agenda. Learning Objective: Learn about Human Traits Collect HW Genetic Activities Worksheet Passback HW & Grade Printout Video: Hybrid Animals Text Book Reading: 192 – 198 HW: Reading & Note taking p. 101 – 104 HW: Signed Grade Printout
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1/9 & 1/10 - 7th Grade Agenda Learning Objective: Learn about Human Traits Collect HW Genetic Activities Worksheet Passback HW & Grade Printout Video: Hybrid Animals Text Book Reading: 192 – 198 HW: Reading & Note taking p. 101 – 104 HW: Signed Grade Printout Reminder HW: Science Fair Background due 1/14 & 1/15 (10 Points) Last day to turn in late work for the semester: 1/14 & 1/15
Reflection • Prompt: Write 2 differences between DNA and RNA
DNA vs RNA DNA RNA • Master Copy • Two Strands • Never leave nucleus • Copy • One Strand • Leaves the nucleus
Mutation nge • Mutation means “cha_____” in Latin • Mutation can cause a cell to produce an incorrect pro____ during protein synthesis. • As a result, the organism’s trait, or pheno____, may be different from what it normally would have been. tein type
Hybrid Animals Donkey Horse • All male and most female mules are infertile • More intelligent than a donkey • More endurance than a horse • Requires less food than a horse Mule
Wholphin = Dolphin + False Killer Whale False Killer Whale Wholphin Dolphin
House Cat + African Cat African Cat
Some human traits are controlled by a single gene that has more than two alleles • Blood type is controlled by three Alleles • What are the major human blood types? • A, B, AB & O • Which human blood type is a universal donor? • Blood Type: O
Many human traits are controlled by many genes • Four genes control height in humans • Skin, eye and hair color are controlled by multiple genes
What are the Male Sex Chromosomes? • XY • Because there is some missing genetic information in the “Y” chromosomes, Males are more likely to get a sex-linked trait
Who determines whether the child is a boy or a girl ? • Father