Genetics, it’s not Genetics, it’s not just Spiderman and just Spiderman and X-men! X-men! GLE: 1.2.7 GLE: 1.2.7 Students will be able to understand that organisms Students will be able to understand that organisms pass on information in their life cycle and that an pass on information in their life cycle and that an organisms characteristics are determined by both organisms characteristics are determined by both genetic and environmental influences genetic and environmental influences
Genetics, it’s not just Spiderman and X-men!. GLE: 1.2.7 Students will be able to understand that organisms pass on information in their life cycle and that an organisms characteristics are determined by both genetic and environmental influences. It’s not just this…. X men? …….. Or this!. - PowerPoint PPT Presentation
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Genetics, it’s not just Genetics, it’s not just Spiderman and X-men!Spiderman and X-men!
GLE: 1.2.7 GLE: 1.2.7 Students will be able to understand that organisms pass on information in Students will be able to understand that organisms pass on information in
their life cycle and that an organisms characteristics are determined by their life cycle and that an organisms characteristics are determined by both genetic and environmental influencesboth genetic and environmental influences
It’s not just this…
• X men? …….. Or this!
Pre-Unit Activity: Genetics
• Draw genetics – 5 minutes
What is Genetics?• Genetics
= the science of heredity.
• Heredity= characteristics passed on from parent to
offspring (we’ll get more specific later in the semester).
So what are some traits that can be passed on
from parent to offspring?
So what are some traits that can be passed on
from parent to offspring?• Eye color
• Hair color
• Talents
• Personality
Genetics…just a lot of words…break it down
• Gene…tics!
• Gene = units of heredity– Contained within each DNA molecule
What is Genetics (cont.)• From a textbook:
• = “The discipline has a rich history and involves investigations of molecules, cells, organisms, and populations, using many different experimental approaches. Not only does genetic information play a significant role during evolution, its expression influences the functioning of individuals at all levels. Genetics thus unifies the study of biology and has had a profound impact on human affairs.”
• HOLY CAMOLY? What does that all mean?
– TO READ YOUR TEXTBOOK, GO SLOW AND BREAK IT DOWN
History!• Most significant scientific findings were
obtained in the 19th century (that’s the 1800’s folks).
• But what led up to that….
History: Prehistoric Times• Domestication of animals to serve
various roles.– What are some examples?
History: Prehistoric Times• Cultivation of plants.
– Examples?
History: Prehistoric Times• So…
– Human awareness of heredity was thus apparent during prehistoric times.
History: The Greek Influence
• Hippocrates and Aristotle (400 - 300 BCE)– More attention directed to heredity– Relation to humans– Mostly related to sperm and egg
1600 - 1850: The Dawn of Modern Biology
• Charles Darwin
• Gregor Mendel
• William Harvey– Theory of epigenesis = an organism is
derived from substance present in the egg, which differentiate into adult structures during embryonic development
1600 - 1850: The Dawn of Modern Biology
Gregor Mendel:• Austrian monk• born 1822• While in monastery was put in charge of the
garden• grew peas and other vegetables• observed different traits in peas:
– some tall and other short– some smooth and others wrinkled
Charles Darwin and Evolution
• Born in England• His father (a doctor) saw no future for a
naturalist so sent Charles to study medicine.• Joined the Clergy and received his B.A. and
joined a survey ship to be the, “conversation companion” to the captain.
• H.M.S. Beagle (1831-1836)• At the same time of Darwin, Alfred Russel
Wallace similar theories.
Charles Darwin and Evolution
• 1859 published the book-length statement of evolutionary theory, “The Origin of Species.”– “The laws governing inheritance are quite
unknown; no one can say why the same peculiarity in different individuals of the same species, and in individuals of different species, is sometimes inherited and sometimes not so; why the child often reverts in certain characters to its grandfather or grandmother or other much more remote ancestor”
Charles Darwin and Evolution
• Geological, geographical, and biological observations convinced him that existing species arose by descent with modifications from other ancestral species.
• Theory of Natural Selection
ACTIVITY (In groups of 2)• CREATE A STORYBOOK! (10
PAGES)
• USING THE WORDS PROVIDED, CREATE A STORYBOOK. USE APPROPRIATE DEFINITIONS.