biology monday 22 feb 2016 - steilacoom · pride assembly on friday, feb 26. • pm assembly...
TRANSCRIPT
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BIOLOGY
Monday
22 Feb 2016
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Entry Task
Explain whether or not you believe the dogs are related.
How?
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Agenda
Entry Task
Housekeeping
Chapter 11 Introduction
Section 11.1 (The Work of Gregor Mendel)
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Housekeeping
Substitute tomorrow, Tuesday, Feb 23.
• Complete vocabulary worksheets
• Reading and questions
PRIDE Time on Wednesday, Feb 24 is Study Time
Quiz on Thursday, Feb 25.
• Sections 11.1 & 11.2
PRIDE assembly on Friday, Feb 26.
• PM assembly schedule
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Chapter 11 Introduction to
Genetics
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Essential Question
How does cellular information pass from one generation to
another?
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Chapter 11 Introduction
Section 11.1 (The work of Gregor Mendel)
• How does an organism pass its characteristics on to its
offspring?
Section 11.2 (Applying Mendel’s Principles)
• How can you predict the outcome of a genetic cross?
Section 11.3 (Other Patterns of Inheritance)
• How can interactions between alleles, genes, and the
environment affect an organism’s traits?
Section 11.4 (Meiosis)
• How does a cell divide to create cells with exactly half of the
original cell’s genetic information?
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Untamed Science Video
“Genetics Takes Root”
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Section 11.1 The Work of
Gregor Mendel
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Learning Objectives
11.1.1 Use and Describe the key vocabulary of genetics.
11.1.2 Describe where an organism gets its
characteristics from.
11.1.3 Describe the process of gamete formation and
segregation.
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Experiments of Mendel
Gregor Mendel (Austrian Monk)
• In charge of the monastery garden.
• Conducted experiments with pea plants.
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Experiments of Mendel
Role of Fertilization
• Pea flowers are normally self-pollinating.
• Monastery garden contained “true-breeding” plants.
• Mendel experimented with traits by crossing true-
breeders.
• Studied 7 different traits.
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Experiments of Mendel
Genes and Alleles
Dominant and Recessive Alleles
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Experiments of Mendel
Segregation
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Chapter 11 Vocabulary
Complete the vocabulary worksheet
• Provide a definition for each word.
• 2pts. EC for flash cards (must be on 3X5 cards and complete)
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BIOLOGY
Tuesday
23 Feb 2016
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Guest Teacher
Reading section 11.1 (p. 308-312)
Complete the following worksheets:
• 11.1 The Work of Gregor Mendel
• 11.1 Assessment Questions
• Vocabulary Worksheet
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BIOLOGY
Wednesday
24 Feb 2016
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Advisory
Study Time.
• You should have materials from your classes to study.
• If you have nothing; I have worksheets for biology
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Entry Task
What are the possible allele combinations for the parents of
a short (tt) pea plant?
• Both parents are short (tt)
• Both parents have the recessive allele (Tt)
• One parent mixed (Tt) the other with recessive (tt).
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Agenda
Entry Task
Housekeeping
Section 11.1 (The Work of Gregor Mendel)
Quick Lab (p.311)
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Housekeeping
Turn in the 11.1 worksheets.
Quiz tomorrow, Thursday, Feb 25.
• Sections 11.1 & 11.2
PRIDE assembly on Friday, Feb 26.
• PM assembly schedule
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Classroom Variation
Quick Lab (p. 311)
• In your notebooks make a copy of the table.
• Write a prediction of whether the traits listed in the table will
be evenly distributed or if there will be more dominant than
recessive traits.
Trait Survey
Feature Dominant
Allele
Number Total Recessive
Allele
Number Total
A Free Ear
Lobes
Attached Ear
Lobes
B Hair on
Fingers
No Hair on
Fingers
C Widow’s
Peak
No Widow’s
Peak
D Curly Hair Straight Hair
E Cleft Chin Smooth Chin
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Classroom Variation
Quick Lab (p. 311)
• Examine your feature in a mirror (or ask a friend). Determine
which traits you have for features A-E.
• Within your group record the number of each trait for your
group.
• Elect a member of your group to gather the same information
for 3 other groups.
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Classroom Variation
Quick Lab (p. 311)
• Share the data with your group. Tally the number of each
allele a record in the total column.
• Complete analyze and conclude
1. Calculate: Calculate the percentage of each trait in your
total sample. How do these numbers compare to your
predictions?
2. Form a Hypothesis: Why do you think recessive traits are
more common in some cases?
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BIOLOGY
Thursday
25 Feb 2016
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Entry Task
How many alleles does a gamete contain following
segregation?
What are the allele combinations of an F2 generation?
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Agenda
Entry Task
Housekeeping
Section 11.2 (Applying Mendel’s Principles)
Chapter 11 Quiz 1
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Housekeeping
PRIDE assembly on Friday, Feb 26.
• PM assembly schedule
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Section 11.2 Applying Mendel’s
Principles
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Learning Objectives
11.2.1 Explain how the principles of probability are used in
predicting outcomes of genetic crosses.
11.2.2 Construct a Punnett square to show possible
genotypes and phenotypes of offspring.
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Probabilities
Probability.
• The likelihood that a particular
event will occur.
p. 313
HEADS HEADS HEADS HEADS
Total Heads =
TotalFlips =
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Probabilities
Segregation to predict outcomes.
• Allele segregation just as
random as a coin flip.
F2 generation contains different
combinations of alleles.
• Homozygous vs Heterozygous
p. 314
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Probabilities
Genotype vs Phenotype.
• Genotype = genetic makeup
• Phenotype = physical traits
(observable)
p. 314
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Punnett Squares
Punnett Squares
• Simple diagrams that use mathematical probabilities to
help predict the genotype
& phenotype combinations
in genetic crosses.
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Biology Quiz
Clear off your desks.
Remember…
• No talking
• Keep your eyes on your own paper
• No electronics during the exam
When you are finished
• Check to make sure you have filled in all bubbles.
• Place question and answer sheets on the front table.
• Silently (no talking) continue reading section 11.2
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BIOLOGY
Friday
26 Feb 2016
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Entry Task
Draw a heterozygous pea plant.
• Label with its genotype and phenotype.
Draw a 2x2 Punnett square using its parent plants.
• What is the probability of this plant in an F2 generation?
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Agenda
Entry Task
Housekeeping
Chapter 11 Quiz 1 Review
Section 11.2 (Applying Mendel’s Principles)
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Housekeeping
Quiz retake on Tuesday, Mar 1.
• Sections 11.1 & 11.2
Progress reports will go out tonight.
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Quiz 1 Review
Hand out quizzes.
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Experiments of Mendel
Genes and Alleles
Dominant and Recessive Alleles
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Punnett Square
Parents