Lesson Objectives 17-2
Explain how natural selection affects single-gene and polygenic traits.
Describe genetic drift.
Explain how different factors affect genetic equilibrium.
How Natural Selection Works Natural selection on a single-gene
11.2 Applying Mendels Principles
Explain how geneticists use the principles of probability to make Punnett squares.
Explain the principle of independent assortment.
Explain how Mendels principles apply to all organisms.
11.3 Other Patterns of Inheritance
Describe the other patterns of inheritance.
Explain the relationship between genes and the environment.
Beyond Dominant and Recessive Alleles.
There are always exceptions
Lesson Summary 11-4 Meiosis
Chromosome Number Homologous chromosomes are pairs of chromosomes that correspond
in body cells.- they carry the same genes. One chromosome from each pair comes from each parent.
A cell that contains both sets of homologous chr
Define mutations and describe the different types of mutations.
Describe the effects mutations can have on genes.
Types of Mutations Mutations are heritable changes in genetic information. There are
Lesson Objectives 13-2
Identify the genetic code and explain how it is read.
Summarize the process of translation.
Describe the central dogma of molecular biology.
The Genetic Code A specific sequence of bases in DNA carries the directions
14.2 Human Genetic Disorders
Explain how small changes in DNA cause genetic disorders.
Summarize the problems caused by nondisjunction.
From Molecule to Phenotype There is a molecular reason for genetic disorders. A
14.1 Human Chromosomes
Identify the types of human chromosomes in a karotype.
Describe the patterns of the inheritance of human traits.
Explain how pedigrees are used to study human traits.
Karyotypes A genome is the full
11.1 The Work of Greg or Mendel
Describe Mendels studies and conclusions about inheritance.
Describe what happens during segregation.
The Experiments of Gregor Mendel The delivery of characteristics from
parents to offspri
12-2 The Structure of DNA
Identify the chemical components of DNA.
Discuss the experiments leading to the identification of DNA as the molecule that
carries the genetic code.
Describe the steps leading to the development of the double-he
12.3 DNA Replication
Summarize the events of DNA replication.
Compare DNA replication in prokaryotes with that of eukaryotes.
Copying the Code Each strand of the double helix has all the information needed to
17.4 Molecular Evolution
Explain how molecular clocks are used.
Explain how new genes evolve.
Describe how Hox genes may be involved in evolutionary change
Timing Lineage Splits: Molecular Clocks A molecular clock uses mut
17.1 Genes and Variation
Define evolution in genetic terms.
Identify the main sources of genetic variation in a population.
State what determines the number of phenotypes for a trait.
Genetics Joins Evolutionary Theory Dar
Lesson Objectives 17-3
Identify the types of isolation that can lead to the formation of new species.
Describe the current hypothesis about Galpagos finch speciation.
Isolating Mechanisms Speciation is the formation of new species.
Lesson Summary- 7-1
The Discovery of the Cell The invention of the microscope in the 1600s enabled researchers
to see cells for the first time.
Robert Hooke named the empty chambers he observed in cork cells.
Anton van Leeuwenhoek was the first to observe
Lesson Summary 7-2
Cell Organization Eukaryotic cells contain a nucleus and many specialized structures.
Cytoplasm is the fluid portion of a cell.
Organelles are structures that have specialized functions in eukaryotic cells.
The nucleus contains DNA and
7.3 Cell Transport
Describe passive transport.
Describe active transport.
Passive Transport The movement of materials across the cell membrane without
using energy is called passive transport.
Diffusion is the process by w
7.4 Homeostasis and Cells
Explain how unicellular organisms maintain homeostasis.
Explain how multicellular organisms maintain homeostasis.
The Cell as an Organism Sometimes a single cell is an organism. Single-celled
12.1 Identifying the Substance of Genes
Summarize the process of bacterial transformation.
Describe the role of bacteriophages in identifying genetic material.
Identify the role of DNA in heredity.
Lesson Objectives 13-1 RNA
Contrast RNA and DNA.
Explain the process of transcription.
The Role of RNA RNA (ribonucleic acid) is a nucleic acid like DNA. It consists of a
long chain of nucleotides. The RNA base sequence directs the producti