Transcript Wednesday * 1.25.17

Wednesday – 1.25.17
Warm-up:
Take out your Genetics
Warm-up Problems
Handout and answer #1
using your sticky note
and the Protocol for MC
Questions.
REMEMBER!
To receive full credit you
must do ALL of the
following things:
–
–
–
–
Mark up the question
Predict your answer
Circle the correct answer
Indicate why the other
answer choices are wrong
Warm-Up #1
1. In rabbits Hairy ears (H) is dominant over non
hairy ears (h) and blue eyes (E) are dominant
over red eyes (e). Two rabbits who are
heterozygous for both traits are crossed,
determine the probability of the offspring
below:
•
•
•
•
Hairy Ears with Blue Eyes? ____________
Non Hairy Ears with Blue eyes? ____________
Purebred Recessive for both traits? ___________
Hairy Ears with Red Eyes? ___________
Gummy Bear Activity: Section 1
• You are a predator, and the
gummy bears are your prey.
• You will form a single-file
line approaching the habitat
in the front of the room.
• You will each look into the
habitat and quickly remove
the first gummy bear you
see and return to your seat.
– ONLY TAKE ONE!
Gummy Bear Analysis: Section 1
•
•
•
•
•
Number of predators that selected red: ___
Number of predators that selected green: ___
Number of predators that selected orange: ___
Number of predators that selected clear: ___
Number of predators that selected yellow: ___
Gummy Bear Analysis: Section 1
How does the gummy bear color (its phenotype)
affect its rate of predation (being chosen as food)?
Your Answer
Correct Answer
The dark/brightly colored bears get
eaten more often.
The light colored/clear ones get
eaten less often.
Phenotypes directly influence the
interaction of an organism with its
environment. These phenotypes
that help organisms survive will
be passed to their offspring more
than the unfavorable traits.
Red Rain Application: Section 1
In 2012, a mysterious red rain fell over Sri Lanka for 2 days.
Predict how you think the red rain phenomena would
have affected the population aquatic organisms (gummy
bears) found in this new environment over time.
Be sure to explain your reasoning.
Cell Phone Activity: Section 2
Arrange your cell phone cut-outs on the timeline
to the best of your ability from oldest to newest.
Let’s check those answers!
Cell Phone Activity: Section 2
1. Describe how the cell phone changed over
time. How does this relate to our new unit?
1. Come up with a definition for evolution.
– Changes in the DNA (gene pool) among
populations of organisms (species) over time.
– Often results in the formation of new species of
organisms.
Pocket Mice: Section 3
As you watch the video, pay special attention to
the ways in which random mutations affect the
never-ending process of evolution.
Pocket Mice of the Valley of Fire
Pocket Mice: Section 3
1. After the video, take turns explaining to your
shoulder partner how the dark-colored fur trait
increased in frequency in the population. Try
your best to use all of the following words:
– Fitness, survival, selection, and evolution
2. Then, answer questions 1-2 in your notes
packet.
Plicker Question
Plicker Question
Plicker Question
Plicker Question
Peppered Moth Activity
Peppered Moth Activity
Peppered Moth Activity
Peppered Moth Activity
Legend
Light Moths:
Dark Moths:
Number of Moths Captured
Years of Study vs. # of Moths Captured
Years of Study
Exit Ticket
Take out your Warmup/Exit Ticket Handout
and answer #3-4 using
your sticky note and the
Protocol for MC
Questions.
REMEMBER!
To receive full credit you
must do ALL of the
following things:
–
–
–
–
Mark up the question
Predict your answer
Circle the correct answer
Indicate why the other
answer choices are
wrong
Exit Ticket #3
3. When meiosis and fertilization occur, genes
from both parents are combined, producing
unique offspring. How does this benefit a
species?
a.The production of more cells leads to faster population
growth.
b.Greater genetic variation increases the chances of
survival of a species.
c. The mixing of parent genes reduces the chance of
mutation in a species.
d.The variation between individuals decreases competition
for resources.
Exit Ticket #4
4. Which of the following explains why natural
selection acts on the phenotype of an
organism instead of its genotype?
a. Phenotypes directly influence the interaction of an
organism with its environment.
b. Genotypes do not change except by the process of
transcription.
c. Genotypes change in direct response to habitat changes.
d. Phenotypes can be inherited by offspring
Friday – 1.27.17
Warm-up:
Take out your Genetics
Warm-up Problems
Handout and answer #2
using your sticky note
and the Protocol for MC
Questions.
REMEMBER!
To receive full credit you
must do ALL of the
following things:
–
–
–
–
Mark up the question
Predict your answer
Circle the correct answer
Indicate why the other
answer choices are wrong
Warm-Up #2
2. In guinea pigs, the allele for black hair (B) is
dominant to the allele for brown hair (b).
Two black-haired guinea pigs are crossed.
One is homozygous for black hair and one is
heterozygous. What is the probability of their
offspring being a hybrid for black hair?
a. 25%
b.50%
c. 75%
d.100%
Giraffe Video Part 1: Section 4
As you watch the first part of this video, try your best
to answer the questions in your notes packet.
http://vimeo.com/19797501 (0:00-5:18)
1.Can individuals evolve or adapt?
2.Does a variation of traits among a population have to
be present in order for natural selection to occur?
3.What is the difference between sexual selection and
natural selection?
4.How does predation influence the traits that are
selected for in a given environment?
Plicker Question
Plicker Question
Plicker Question
Plicker Question
Darwin’s 5 Points
1. Populations have variation.
2. Some variations are favorable.
3. More offspring are produced
than survive.
4. Those that survive have
favorable traits.
5. A population will change over
time.
*population: all of the organisms of
the same species that live in the
same area and are capable of
reproducing with each other
Darwin’s 5 Points
Darwin’s 5 Points
Darwin’s 5 Points
Darwin’s 5 Points
Darwin’s 5 Points
Plicker Question
Plicker Question
Plicker Question
Plicker Question
Exit Ticket
Take out your Warmup/Exit Ticket Handout
and answer #5 using
your sticky note and the
Protocol for MC
Questions.
REMEMBER!
To receive full credit you
must do ALL of the
following things:
–
–
–
–
Mark up the question
Predict your answer
Circle the correct answer
Indicate why the other
answer choices are
wrong
Exit Ticket #5
5. Which of these best illustrates natural
selection?
a. An organism with favorable genetic variations will
tend to survive and breed successfully.
b. A population monopolizes all of the resources in
its habitat, forcing other species to migrate.
c. A community whose members work together
utilizes all existing resources and migratory routes.
d. The largest organisms in a species receive the only
breeding opportunities.