Biochemical Evidence for Evolution
An important technique used in determining evolutionary relationships is the biochemical
comparisons of organisms. Organisms that are not similar in physical appearance may have similar amino
Cladogram and Character Matrix Activity. Understanding phylogenetic trees.
Examine the organisms below. In the table, place a + if they contain the characteristic and a 0 if they
do not contain the characteristic.
What is a cladogram? It is a diagram that depicts evolutionary relationships among groups. It is based on PHYLOGENY,
which is the study of evolutionary relationships. Sometimes a cladogram is called a phylogenetic tree (though tec
CP Biology: Natural Selection Lab
Charles Darwins theory of evolution by natural selection proposed that organisms best adapted to their
environment survive and reproduce more successfully than other organisms. If an organism can blend
Natural Selection and Evidence for Evolution
_ - change in population over time
_- father of modern evolutionary theory
- Sailed to the Galapagos Islands of the HMS Beagle
Scientist that influenced Darwin:
_- organisms change due to the pressures of their
Evolution- change in
population over time
father of modern
Darwin HMS Beagle
Trip around the world
DNA study guide answers
Name of Sugar
Number of Strands
List all of the bases
T, C, G, A
A, C, G, U
What is complimentary T
What is complimentary A
Thymine is not in
What is complimentary G
Biology Spring Midterm Review
Name_ Period _
1. What are gametes? How are they created?
2. What types of cells does meiosis create? How are they different from those created by mitosis?
3. Explain crossing over. When does it occur?
4. Explain nond
Chemical Basis of Genetics
A. A comparison of the structure DNA and RNA.
Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are two of the cells most important
molecules. These nucleic acids have a complete three-dimensional structure that enables the