DNA‚ which stands for Deoxyribonucleic acid is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms. The main role of DNA molecules is the long-term storage of information. These nucleic acids consist of long chains if chemical units called nucleotides. Nucleic acids are information storage molecules that provide the directions for building proteins. Described by the DNA testing centre‚ Inc.‚ “DNA is found inside the chromosome
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Surname Centre Number Candidate Signature Other Names Candidate Number Leave blank General Certificate of Education June 2004 Advanced Level Examination BIOLOGY/HUMAN BIOLOGY (SPECIFICATION A) Unit 5 Inheritance‚ Evolution and Ecosystems Tuesday 22 June 2004 Morning Session No additional materials are required. You may use a calculator. BYA5 For Examiner’s Use Number 1 2 Mark Number Mark Time allowed: 1 hour 30 minutes Instructions • Use blue or black ink or ball-point pen. • Fill in the boxes
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Diversity WORD | DEFINITION | Mitochondria | The part of a cell where cellular respiration occurs | Vacuole | The part of a cell used for storage | Cytoplasm | Fluid found outside the nuclear membrane | Morphology | The branch of bio that deals with the structure or form of organisms | Taxon | A named group of organisms | Phylogenetic tree | Shows the evolutionary differences between different species | Capsid | The outer layer of protein that surrounds the genetic material of
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Unit 1 Diversity 1. List the 6 kingdoms for classifying living things. 2. List the levels of organisation from kingdom to species. 3. What is binomial nomenclature? 4. Who is Carl Linnaeus? 5. What is a dichotomous key? 6. Draw and label the lifecycle of a DNA virus. 7. Distinguish between DNA and RNA viruses. 8. Compare eukaryotic cells and prokaryotic cells. 9. Define coccus‚ bacillus‚ streptococcus‚ and spirillum? 10. What are 3 examples of helpful bacteria? 11. What do bacteria need
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Lesson 6.2: True or False Name___________________ Class______________ Date________ Write true if the statement is true or false if the statement is false. T 1. The rules of probability apply to genetics. T 2. If an individual has a Gg genotype‚ half of his gametes should have the G allele‚ and the other half should have the g allele. F 3. A Punnett square is a chart that allows you to easily determine the expected genotypes in the offspring of two parents. (expected percents) T 4. In a cross between
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Biology – living organisms Scientific Method – making observations‚ proposing ideas about how something works‚ testing ideas‚ discarding or modifying -allows us to solve problems and answer questions efficiently and effectively. -Ideas about “how things work” = hypothesis. -proposed explanation for one or more observations -scientific hypothesis MUST be testable -must be falsifiable (observations could prove false) Observations Question Hypothesis = imagination‚ intuition‚ chance
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CHAPTER 14 1. Norm of reaction: the phenotypic range that a genotype is associated with due to environmental influences. 2. Multifactorial: characters that have many factors‚ both genetic and environmental‚ collectively influence phenotype. 3. Pleiotropy: when a gene controls multiple phenotypic effects 4. Epistasis: When a gene at one locus alters the phenotypic expression of a gene at a second locus 5. Carrier: a person who is heterozygous for a recessive disease and therefore
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|[pic] |Syllabus | | |College of Natural Sciences | | |BIO/101 | |
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MODULE 2: GENETICS‚ VARIATION AND NATURAL SELECTION SPECIFIC OBJECTIVES & EXPLANATORY NOTES 1. Structure and Roles of Nucleic Acids 1.1 illustrate the structure of RNA and DNA using simple labelled diagrams; The genetic substance found in all organisms called DNA or deoxyribonucleic acid is a kind of nucleic acid. Nucleic acids consist of two long polymers of simpler units‚ called nucleotides; that are composed of three (3) main units as shown below: 1) A pentose sugar (deoxyribose
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finding gave way to the understanding of how new cells form. Remak shared his findings with Virchow‚ who then stole his ideas and published them as his own. As we have learned in class new cells form from old cells through the process of meiosis and mitosis. In meiosis‚ chromosome pairs synapse‚ cross over‚ align‚ and separate twice. The crossing over results in the mixing of genetic information between the chromosome pairs. When they separate‚ they divide and form four cells with varied genetic material
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