5.2: traits & punnett squares &...
TRANSCRIPT
5.2: Traits & Punnett Squares & Meiosis
p. 120-125
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Calculate the Mendelian ratio for the following trait: Round seed (dominant): 5474 and Wrinkled (recessive): 1850.
What did you learn today?
What did you learn today?
The ratio is: 2.95: 1 OR 3:1
Where can genes be found? What are alleles?
Genes are found on chromosomes in the nucleus of our cells. Alleles are the two forms of genes one can inherit from their parents.
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Mon
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R/Fri
1/12/15
1/13/15
1/14/15
1/15/15
1/13/14
1/14/14
1/15/14
1/16/141/17/14
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My List of Academic Tools
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My List of Academic Tools Unit 1: Heredity, Genes, and DNA
Standards and CSS and NGSS
Unit 1: Heredity, Genes, and DNA
Chapter 5 Vocabulary 1/5/15
Finger Print Activity 1/5/15 Unit 1: Ch 5.1 Mendel & His Peas Notes 1/6/15 Unit 1: Ch 5.1 Mendel & His Experiments Notes 1/6/15
Unit 1: Ch 5.1 Mendel & His Experiments WKST & HMWK 1/6/15
Unit 1: Ch 5.1 Mendel & His Ratio WKST & HMWK 1/7/15
Unit 1: Ch 5.1 Mendel & His Ratio Notes 1/7/15
1/7 OR 1/8Ch 5.1 Quiz: Mendel, Peas and Ratios
Trait Survey Packet (Lab) 1/8/15
Section 5.1 Review #1-4, 7, 8-9 p. 119 1/8/15
Ch 5.2: Traits & Punnett Square Notes 1/12/15
Ch 5.2: Traits & Punnett Square WKST & HMWK 1/12/15
Ch 5.3: Meiosis Notes
Ch 5.3: Meiosis Activity (WKST) & HMWK
1/14/15
1/14/15
Ch 5.2 Section Review p. 125 #1,3,4,6,7-9 1/15/15
Ch 5-2 & 5.3 Quiz: Punnett Squares & Traits 1/15/15
Family Portrait Activity-Probability of Genes 1/13/15
CH 5 VOCABULARY
Genes: instructions/“blueprints” for inherited traits
Alleles: the different forms (dominant or recessive) of a gene
CH 5 VOCABULARY
Genes: instructions/“blueprints” for inherited traits
Alleles: the different forms (dominant or recessive) of a gene
CH 5 VOCABULARY
Genotype: both inherited alleles together form this; the “genetic” makeup of a trait
Phenotype: an organism’s physical expression of a gene “physical trait”
Vocabulary Example (1 gene=2 alleles)
Genetic Application
Genotype: • Genetic makeup of
an organism
Represented by (TT, tt, or Tt)
T=dominant allele t=recessive allele
Phenotype: • Physical
characteristics of an organism
Similar to “trait” • Actual trait you see face-to-face
• Physically observing someone with brown eyes
CH 5 VOCABULARYVocabulary Genotype Phenotype
Homozygous: Term used to refer to an organism that has two identical alleles for a particular trait
TT or tt TT= homozygous dominant (tall) tt= homozygous recessive (short)
Heterozygous: Term used to refer to an organism that has two different alleles for the same trait
Tt Tt=tall (dominant trait)
PUNNETT SQUARES
How do we predict traits for future offspring?
Punnett squares: organizes all possible combinations of offspring from specific parents.
We use the alleles to make and fill in the square.
PUNNETT SQUARE SET UP
Making a Punnett Square:
pg. 121 in textbook
GENES AND ALLELES MOVIE CLIP
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Calculate the Mendelian ratio for the following trait: Round seed (dominant): 5474 and Wrinkled (recessive): 1850.
What did you learn today?
What did you learn today?
The ratio is: 2.95: 1 OR 3:1
Where can genes be found? What are alleles?
Genes are found on chromosomes in the nucleus of our cells. Alleles are the two forms of genes one can inherit from their parents.
CH 5 VOCABULARY
Probability: the likelihood that a possible future event will occur in any given instance of the event
PUNNETT SQUARE SET UP
Making a Punnett Square:
pg. 121 in textbook
Steps for Punnett SquaresSTEPS:
(1) Fill in (or complete) the Punnett Square.
(2) Record the genotypes you find.
(3) Record the phenotypes you find.
(4) Use probability to explain the chances of a dominant or recessive offspring for both genotype and phenotype.
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What did you learn today?
What did you learn today?
Fill in (or complete) the Punnett Square.
tTtt
tTtt T
Ttt
tttt
tTtt T
Ttt
tttt
T=dominant trait for “tall”. t=recessive trait for “short”. Looking at the Punnett Square, what is the probability of this couple having a child who is short?
50%
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My List of Academic Tools
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My List of Academic Tools Unit 1: Heredity, Genes, and DNA
Standards and CSS and NGSS
Unit 1: Heredity, Genes, and DNA
Chapter 5 Vocabulary 1/5/15
Finger Print Activity 1/5/15 Unit 1: Ch 5.1 Mendel & His Peas Notes 1/6/15 Unit 1: Ch 5.1 Mendel & His Experiments Notes 1/6/15
Unit 1: Ch 5.1 Mendel & His Experiments WKST & HMWK 1/6/15
Unit 1: Ch 5.1 Mendel & His Ratio WKST & HMWK 1/7/15
Unit 1: Ch 5.1 Mendel & His Ratio Notes 1/7/15
1/7 OR 1/8Ch 5.1 Quiz: Mendel, Peas and Ratios
Trait Survey Packet (Lab) 1/8/15
Section 5.1 Review #1-4, 7, 8-9 p. 119 1/8/15
Ch 5.2: Traits & Punnett Square Notes 1/12/15
Ch 5.2: Traits & Punnett Square WKST & HMWK 1/12/15
Ch 5.3: Meiosis Notes
Ch 5.3: Meiosis Activity (WKST) & HMWK
1/14/15
1/15/15
Ch 5.2 Section Review p. 125 #1,3,4,6,7-9 1/15/15
Ch 5-2 & 5.3 Quiz: Punnett Squares & Traits 1/15/15
Family Portrait Activity-Probability of Genes 1/13/15
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What are the four steps of mitosis? What is the purpose of mitosis?
What did you learn today?
What did you learn today?
The four steps in mitosis are: prophase, metaphase, anaphase and telophase. The purpose is to divide one cell into two identical cells.
What are the steps of meiosis? What is the purpose of meiosis?
The steps of meiosis are: prophase, metaphase, anaphase, and telophase. The purpose is to have four non-identical cells.
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What are the four steps of mitosis? What is the purpose of mitosis?
What did you learn today?
What did you learn today?
The four steps in mitosis are: prophase, metaphase, anaphase and telophase. The purpose is to divide one cell into two identical cells.
What are the steps of meiosis? What is the purpose of meiosis?
The steps of meiosis are: prophase, metaphase, anaphase, and telophase. The purpose is to have four non-identical cells.
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What is a pedigree and why is it important?
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What did you learn today?
A pedigree is a way to predict the passing on of disorders in a family tree. It is important so families know the probability of passing traits onto their kids.
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AgendaMon
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Mon
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THURS
1/19/15
1/20/15
1/21/15
1/22/15
1/26/14
1/27/14
1/28/14
1/29/14
HMWK: -Meiosis Wrkst & Hmwk due Tues (1/20)
-Family Portrait Lab Drawing due Tues (1/20) -Ch 5.3 Section Review p. 133 #2-4, 5-6, 8,9 (on lined paper use p. 126-132) due Thurs 1/22
-Ch 5.3 Pedigree Worksheet & Homework due tomorrow (1/22)
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Unit
CA Content Standards Covered In This Unit
Ch 5-2 & 5.3 Quiz: Punnett Squares & Traits 1/15/15
Chapter 5 Vocabulary 1/5/15
Unit 1: Ch 5.1 Mendel & His Peas Notes 1/6/15
Unit 1: Ch 5.1 Mendel & His Experiments Notes 1/6/15Unit 1: Ch 5.1 Mendel & His Experiments WKST & HMWK 1/6/15
Unit 1: Ch 5.1 Mendel & His Ratio WKST & HMWK
Unit 1: Ch 5.1 Mendel & His Ratio Notes
Ch 5.1 Quiz: Mendel, Peas and Ratios Trait Survey Packet (Lab)
Section 5.1 Review #1-4, 7, 8-9 p. 119Ch 5.2: Traits & Punnett Square Notes
Ch 5.2: Traits & Punnett Square WKST & HMWK
Ch 5.3: Meiosis NotesCh 5.3: Meiosis Activity (WKST) & HMWKCh 5.2 Section Review p. 125 #1,3,4,6,7-9
Family Portrait Activity-Probability of Genes
Finger Print Activity 1/5/15
Ch 5.3 Section Review p.133 #2-4,5-6,8,9
Ch 5.3 Quiz: Meiosis & Pedigrees
1/22/15
1/22/15
Pedigree Worksheet & Homework 1/22/15
“Bug Builder” Lab Activity 1/22/15
p. 14 Meiosis and Sex Chromosomes
Sex chromosomes carry genes that determine gender
p. 14 Sex-Linked Disorders
Certain disorders, such as color blindness are carried on “X” chromosomes.
Men are more likely to have sex-linked disorders. Why?
p. 14 Genetic Counciling
Genetic councilors make a pedigree to see how disorders are passed from generation to generation.
This way, they can trace a trait through a family tree.
p. 14 Pedigree
If both copies of the “X” chromosome is affected, you have the disease.
If you have only one “X” with the mutated trait, then you have the disease
Review Ch 2 Vocabulary
Asexual reproduction: only 1 parent is needed; 1 cell dividing into two identical cells (mitosis)
Sexual reproduction: two parents are needed; 2 cells (mom and dad) joining into 1 cell
Intro to Meiosis
How many chromosomes are found in most cells in your body?
46
How many chromosomes are found in the sex cells of your body?
23
Prezi Meiosis
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