Biology - Dna - Revision

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BIOTECHNOLOGY REVISION

5.8.1cell theory
a) explain that systems in multicellular organisms serve the needs of cells

b) identify the role of cell division in growth, repair and reproduction in multicellular organisms.

5.8.2the Watson-Crick model of DNA
a)explain the advantages of DNA replicating exactly

http://www.biotechnologyonline.gov.au/biotechnologyonline/topitems/resources.html Video animation DNA replication

Picture taken from http://images.google.com.au/imgres?imgurl=http://www.genome.gov/Pages/Hyperion/DIR/VIP/Glossary/Illustration/Images/dna_replication.gif&imgrefurl=http://www.genome.gov/Pages/Hyperion/DIR/VIP/Glossary/Illustration/dna_replication.cfm%3Fkey%3DDNA%2520replication&usg=__MC1gteR1DGrNMyKze8xoaOSXF1U=&h=555&w=246&sz=42&hl=en&start=6&tbnid=c-NZ7QK4g3yqyM:&tbnh=133&tbnw=59&prev=/images%3Fq%3Ddna%2Breplication%26gbv%3D2%26hl%3Den%26safe%3Dactive%26sa%3DG on 6/8/09.

b)explain the advantages and disadvantages of DNA mutating

c)identify that information is transferred as DNA on chromosomes when cells reproduce themselves

d)identify that genes are part of DNA

Picture taken from http://publications.nigms.nih.gov/thenewgenetics/images/ch1_dnagenes.jpg on 6/8/09.

e) identify the role of genes and environmental factors in determining the features of an organism.

5.12technology
c)describe some benefits and problems of using biotechnology 5.3 evaluates the impact of applications of science on society and the environment 5.5 analyses how current research might affect people’s lives

BIOTECHNOLOGY REVISION

5.8.1cell theory
a) explain that systems in multicellular organisms serve the needs of cells

b) identify the role of cell division in growth, repair and reproduction in multicellular organisms.

2 Which process has a role in the growth and repair of tissue in multicellular organisms?
(A) Coordination
(B) Cell division
(C) Mutation
(D) Sexual reproduction2008

31 Where is DNA found in the cell?
(A) In the genes
(B) In the nucleus
(C) In the membrane
(D) In the cytoplasm2008

12 One type of cell division in multicellular organisms results in new cells that have half the original number of chromosomes. In which process is this type of division important? (A) Coordination

(B) Growth
(C) Repair
(D) Reproduction2006

5.8.2the Watson-Crick model of DNA

28 Three scientists were awarded the Nobel prize for developing a model of DNA. What is the name of one of these scientists?
(A) Darwin
(B) Mendel
(C) Wallace
(D) Watson 2005

a)explain the advantages of DNA replicating exactly

58 What specific term describes the process in which DNA copies itself exactly? 2005

b)explain the advantages and disadvantages of DNA mutating

33 What happens to DNA as a result of a mutation?
(A) It unwinds.
(B) It splits in two.
(C) It replicates exactly.
(D) It is not identical to the original.2008

34 Why can a mutation be an advantage for populations of living things? (A) It always makes organisms more disease-resistant.
(B) It causes new structures to develop in individuals.
(C) It creates variations in the characteristics of organisms. (D) It makes cells in an individual work and divide faster. 2006

c)identify that information is transferred as DNA on chromosomes when cells reproduce themselves

Question 63 (6 marks)
You have been asked to prepare a talk for Year 9 students on the features and functions of DNA. Outline the information you would present in your talk. In your outline, identify ONE diagram you would include and give a reason for your choice. (It is NOT necessary to draw the diagram.) 2006

54 Name the thread-like structures containing DNA that are found in the nucleus of most cells.2004

d)identify that genes are part of DNA

22 When cells reproduce, what does the transferred DNA contain? (A) Chromosomes
(B) Genes
(C) Nucleii...
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