Download Revision exercise

BLUEPRINT OF LIFE REVISION SHEET 1
What is evolution?
Briefly outline how each of the following could impact on the evolution of plants and
animals.
How these factors could impact on evolution
Changing physical
environment
Changing chemical
conditions in the
environment
Competition for
resources
Give examples of how each of the following can be used to support the theory of
evolution.
Palaeontology
transitional forms
biogeography
comparative
embryology
biochemistry
BLUEPRINT OF LIFE REVISION SHEET 2
Briefly describe the contribution made by Darwin and Wallace to the theory of
evolution.
What is a pentadactyl limb? Why is the study of this important when studying
evolution?
What contribution did Gregor Mendel have to the study of inheritance?
Briefly describe some of the experiments carried out by Mendel.
What is a monohybrid cross?
What is meant by the term homozygous?
What is meant by the term heterozygous?
BLUEPRINT OF LIFE REVISION SHEET 3
A homozygous red bird is crossed with a heterozygous white bird.
Which feature is dominant?
Which feature is recessive?
What is the genotype of the red bird?
What is the genotype of the white bird?
Use a punnet square to show the possible offspring for this cross.
What are the phenotypes of the offspring?
What are the genotypes of the offspring?
What is a gene?
What are alleles?
What is a pedigree? What can it be used for in genetics?
BLUEPRINT OF LIFE REVISION SHEET 4
What contribution did Sutton make to the study of chromosomes?
What contribution did Boveri make to the study of chromosomes?
In the space below sketch a small segment of a chromosome. Label all of the parts.
What is a gene?
In the space below sketch a simplified diagram to show a cell undergoing meiosis.
Label the diagram.
BLUEPRINT OF LIFE REVISION SHEET 5
What do each of the following terms mean?
TERM
haploid
MEANING
diploid
crossing over
segregation of
chromosomes
co-dominance
sex linkage
gamete
What would be the result of the following sex linked cross?
XhXH x XHY
Show using a punnet square how a red rose crossed with a white rose results in a pink
rose
BLUEPRINT OF LIFE REVISION SHEET 6
What contribution did Morgan make to the study of genetics?
Give an example of how the environment can influence the expression of a gene in an
individual.
Use a diagram to show how DNA replicates.
What is protein synthesis?
Outline how protein synthesis takes place. Use a diagram.
What is a mutation? What results from mutations?
BLUEPRINT OF LIFE REVISION SHEET 7
What is a mutagen?
Give two examples of mutagens?
Briefly outline the contribution made by each of the following to our understanding of
the structure and function of DNA.
James Watson
Francis Crick
Rosalind Franklin
Maurice Wilkins
What is meant by the term punctuated equilibrium in evolution?
There are many examples of modern natural selection. Describe one of these.
BLUEPRINT OF LIFE REVISION SHEET 8
Briefly describe how each of the following reproductive techniques may alter the
genetic composition of a population.
Artificial
insemination
Artificial
pollination
Cloning
What is a transgenic species?
How are transgenic species produced?
What impact can the use of modern reproductive technologies and genetic
engineering have on genetic diversity.
Give an example of a plant and an animal that have been genetically altered?
What is biodiversity and why is it important?