LECTURE 24 ENERGY
Work - Application of force through a distance.
Energy - The capacity to do work.
Power - Rate at which work is done or rate of flow of energy.
Units of energy
Joule- Amount of work done when a force of 1 Newton is exerted over 1 me
Genetic Mutation Ch. 16 NOtes
Mutations can involve the duplication of large sections of DNA, usually through genetic
recombination. These duplications are a major source of raw material for evolving new genes,
with tens to hundreds of genes duplicated in
Ch. 13 Evolution on a Small Scale
When some alleles become more common in a population, and other less
common, from one generation to the next.
Therefore, it does not happen at the level of individuals within a
Evolution provides us a means
DNA Technology Ch 11 Notes
DNA Function: Recap
Organisms genome is all of the genetic material in its cells
Much DNA has no known function (i.e. makes no protein)
A gene encodes specific protein or RNA
Human genome has ~23,
Ch. 12 Notes
Transgenic organisms are able to express foreign genes because the
genetic code is similar for all organisms.
This means that a specific DNA sequence will code for the same
protein in all organisms.
Due to this similari
Artificial Selection Ch. 14 Notes
Humans choose desirable traits and breed only those best
expressing those traits
E.g. wild mustard (not a very tasty plant) was artificially bred to give rise
to many mustard greens.
Quiz 1 Review Chpt 11
We currently have the technology to clone humans.
1. The two cells were fused using a small electrical current.
2. An embryo was implanted into a "surrogate mother."
3. All nuclear DNA was removed from a sperm.
4. A ce
Quiz 2 Review CHpt 10
Which of the following makes the cloning of dinosaurs a difficult task?
A) there are not enough dinosaur fossils.
B) dinosaurs never had DNA.
C) cloning cannot be done unless the
species is still living.
D) DNA gradually degrades ove
Quiz 4 Review Chpt 13
Selective breeding, to enhance specific traits in a species, is an example of
A) usually lead to sterile individuals.
B) are random.
C) are always beneficial.
D) occur to solve problems f
Quiz Review 3 Chpt 12
Populations are capable of evolving by the passing on of acquired traits from their
interactions with their environment.
Microevolution is best defined as
A)creation of a new allele.
B)changes in allele frequencies i
The components of natural selection:
1. Variation individuals vary
2. Inheritance these varying traits are heritable
3. Varying degrees of reproductive success some individuals will
reproduce more than others
How natural selection works