1/6 & 1/7 - 7th Grade Agenda Learning Objective: Learn about Hybrid Animals Collect HW: Reading & Notetaking 99 – 100 Ph Lab Private Lives of Plants HW: Genetic Activities Worksheet HW: Science Fair Background due 1/13 & 1/14 (10 Points) Last day to turn in late work for the semester: 1/13 & 1/14

Reflection Prompt: What is the difference between Mitosis and Meiosis

Science Fair Background 10 Points Due 1/13 & 1/14 Research and write 2 paragraphs related to your topic. Do not write your opinion. It must contain researched facts.

Protein Synthesis osome Cells use information from a gene on a chrom_________ to produce a specific protein. osome

RNA Before protein synthesis can take place a “messe____” carry the genetic code from the DNA inside the nucleus into the cytoplasm. This genetic messenger is called ribonucleic acid or RNA nger

RNA

DNA vs RNA DNA RNA Copy One Strand Leaves the nucleus Master Copy Two Strands Never leave nucleus Copy One Strand Leaves the nucleus

Step 1 in Protein Synthesis Messenger RNA Production

Step 2 in Protein Synthesis Messenger RNA attaches to a Ribosome

Step 3 in Protein Synthesis Transfer RNA attaches to a Messenger RNA

Step 4 in Protein Synthesis Protein Grows

Mutation

Mutation nge tein type 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. nge tein type

Hybrid Animals Donkey Horse Mule 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

Ligers = Male Lion + Female Tiger

More Ligers

Tigon = Male Tiger + Female Lion

Zorse = Male Zebra + Female Horse

Wholphin = Dolphin + False Killer Whale

Wolfdog = Wolf + dog

House Cat + African Cat African Cat

Tangelo = Tangerine + Grape Fruit

pH pH: means potential of hydrogen (Positive Ion) Scale goes from 0 to 14 0: Very acidic (hydrochloric acid) 7: Neutral (Water) 14: Very basic or alkaline (Drain Cleaner)

What are properties of an acid? It tastes sour It reacts with metals and carbonates It turns blue litmus red.

What are some common use of acids ?

What are properties of a bases? It tastes bitter Slippery feel Reacts with acids Turns red litmus blue

What are some common use of bases ?

pH Lab Lemonade Water Baking Soda 2 7 8.5