what is an acquired trait? a trait that an organism acquires or gains over its lifetime. it cannot...
TRANSCRIPT
![Page 1: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/1.jpg)
GENETICS AND ADAPTATIONS
![Page 2: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/2.jpg)
INHERITED VS. ACQUIRED TRAITS What is an acquired trait?
A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability a monkey has to peel a banana.
What is an inherited trait? A trait that is passed to offspring because of
genetic inheritance. Could be good or bad for the organism.
![Page 3: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/3.jpg)
INHERITED TRAITS What are some examples of traits that
make an organism MORE suited to its environment?
What are some examples of traits that make an organism LESS suited to its environment?
![Page 4: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/4.jpg)
INHERITED OR ACQUIRED? Blue eyes
Dog’s short fur
Broken arm
Blonde hair
A Cold
Sun tan
Colorblindness
Ability to roll tongue
Love of music
Ability to do math well
![Page 5: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/5.jpg)
LAMARCK When environments changed, organisms
had to change their behavior to survive. If they began to use an organ more than they had in the past, it would increase in its lifetime. If a giraffe stretched its neck for leaves, for example, a "nervous fluid" would flow into its neck and make it longer. Its offspring would inherit the longer neck, and continued stretching would make it longer still over several generations. Meanwhile organs that organisms stopped using would shrink.
Is this true?
![Page 6: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/6.jpg)
TOOTHPICK ACTIVITY In your group of 3, time each person for
10 seconds while they pick up toothpicks one by one.
Make a chart in your notes of how many toothpicks of each color each person picked up.Person Brown Red Yellow
Leonardo
Donatello
Michaelangelo
![Page 7: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/7.jpg)
BUTTERFLIES Count how many butterflies you can
spot on the wall
Count how many butterflies you can spot on the floor
![Page 8: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/8.jpg)
HOMEWORK Write down 5 adaptations animals have
that help them survive in their environment.
Write down 5 traits that you have inherited from your parents.
![Page 9: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/9.jpg)
HOW ARE TRAITS PASSED ON? Two ways to inherit traits. Most
organisms reproduce with one or the other, not both.Asexual reproductionSexual reproduction
Both use genetic information (DNA) to create offspring
![Page 10: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/10.jpg)
ASEXUAL REPRODUCTION The DNA of the parent is the same as
the offspring.
Any genetic mutation (whether good or bad) will be passed onto the offspring.
![Page 11: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/11.jpg)
BACTERIA
![Page 12: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/12.jpg)
SOME PLANTS
![Page 13: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/13.jpg)
ALGAE
![Page 14: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/14.jpg)
MARINE LIFE
![Page 15: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/15.jpg)
HYDRA
![Page 16: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/16.jpg)
PLANERIA
![Page 17: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/17.jpg)
FUNGI
![Page 18: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/18.jpg)
SEXUAL REPRODUCTION A better system for producing genetic
variation and therefore “fitness” for an environment
½ of the DNA from one parent and ½ from the other parent
![Page 19: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/19.jpg)
SEXUAL REPRODUCTION Advantages
More opportunity for mutationsMore DNA combinations
DisadvantagesSometimes takes longerSome bad genes are still possible
![Page 20: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/20.jpg)
MAMMALS
![Page 21: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/21.jpg)
BIRDS
![Page 22: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/22.jpg)
FISH
![Page 23: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/23.jpg)
REPTILES
![Page 24: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/24.jpg)
DNA Double ½ genes on one side ½ genes on other side Sex cells have ½
![Page 25: What is an acquired trait? A trait that an organism acquires or gains over its lifetime. It cannot be passed on to its offspring. Like the ability](https://reader030.vdocuments.mx/reader030/viewer/2022032612/56649ee05503460f94bf0ee0/html5/thumbnails/25.jpg)
DNA ACTIVITY Read pg C97-103 as a class.
Make an example of an offspring’s DNA in asexual and sexual reproduction.
Follow the example on the board.