1 3rd Grade Inheritance of Traits ClassworkHomework 20151109 - PowerPoint PPT Presentation

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3rd Grade Inheritance of Traits Classwork­Homework 2015­11­09 www.njctl.org 2

Classwork #1: Inherited Traits 3

1 Name five genetic traits of this bird, a toucan. 1. __________ 2. __________ 3. __________ 4. __________ 5. __________ 4

2 Name five genetic traits of this fish, a lionfish. 1. __________ 2. __________ 3. __________ 4. __________ 5. __________ 5

3 From where did these animals inherit these traits? 6

Homework #1: Inherited Traits 7

Match the offspring with the parent, based on inherited traits. Beside each offspring, list two inherited traits that helped you to determine its parents. Offspring Parents Traits 8

Classwork #2: Inherited Variations 9

1 Make a list of three inherited traits that they all have in common. 10

2 In what inherited traits do you notice variation? Write three traits below and describe the variations that you see in each. 11

3 If these kittens have the same parents, why is there so much variation? 12

Homework #2: Inherited Variations 13

1 Choose one variation from each trait and draw an example of what the offspring may look like. Trait Father Variation Mother Variation Tail Long Short Body Size Tall Short Hair texture Curly Straight Hair color White Brown Ears Upright Floppy 14

2 Do you think everyone in your class will draw the same exact offspring? Why or why not? 15

3 If these dogs have a litter of puppies, why will they all look different from each other? 16

Classwork #3: Environmental Traits 17

1 What environmental effects have shaped the tree in the middle of the picture? 18

2 If the seed from the tree is taken and grown in a sheltered area with good soil, will the offspring look like the tree in the picture? Why or why not? 19

Homework #3: Environmental Traits 20

1 How has the environment changed some of the pelican's inherited traits? 21

2 If two oil spill pelicans mate, will their offspring have ulcers and liver damage? Why or why not? 22