Name:
Chapter 11
Introduction to Genetics
11.1 The Work of Gregor Mendel
Genetics:
Heredity:
Mendelian Genetics
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Traits:
Examples.
Pea Plant Traits
1.
2.
3.
4.
5.
6.
7.
Performed experiments using ______plants.
Why pea plants?
Mendel’s Experiment
Step 1:
Fertilization:
Purebred:
Hybrid:
He called these plants the ______.
Step 2:
Monohybrid cross:
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Step 3:
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Overall
Genes:
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These copies are called ______.
Alleles are represented by ______.
Examples….
Principal of Dominant alleles:
Examples…
Principal of Recessicve alleles:
Examples…
Mendel’s First Law
Law of Segregation
Gamete:
Where do you get your sex cells from?
11.2 Applying Mendel’s Principal
Probability:
Punnett Squares:
Homozygous:
Homozygous Dominant:
Homozygous Recessive:
Heterozygous:
Genotype:
Phenotype:
Your mother is homozygous for black hair and
your dad has blonde hair. Black is dominant to blonde.
Mendel’s Second Law
Law of Independent Assortment:
11.3 Other Patterns of Inheritance
Incomplete dominance or intermediate inheritance:
Examples…
Codominance:
For example blood. What are the four blood types?
1.
2.
3.
4.
Blood Grouping
Blood Type / GenotypeIf a woman who is 6 ‘3’ and mates with a male who is 6 ‘7’… does that mean their son or daughter will be tall? Why?
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Polygenic inheritance:
Examples…
Environment
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11.4 Meiosis
Homologous:
Diploid:
Haploid:
Almost all human cells are ______(2n). They contain two homologous sets
of chromosomes. Single set of chromosomes are called ______(n). Gametes
are sex cells (eggs and sperm) and are haploid. For humans n= ______.
______(n) is fusing with an ______(n). this is called ______.
The fertilized egg is called a ______(2n).
Meiosis:
Mitosis:
Meiosis:
Stages of Meiosis
Meiosis 1
Prophase 1:
Crossing over:
Metaphase 1:
Anaphase 1:
Telophase 1 and Cytokinesis:
Meiosis 2
Prophase 2:
Metaphase:
Anaphase 2:
Telophase 2 and Cytokinesis:
Gametes to Zygotes
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Zygote:
Genetic Linkage
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Genetic linkage:
Mitosis vs. Meiosis
Mitosis / MeiosisWhy does it happen?
Where does it happen in your body?
When does it happen during your lifetime?
Number of cells formed?
Number of chromosomes
Number of cell divisions
Types of cells formed