NO.102/1 Marker Code Student Personal Identification Number (SPIN) South Pacific Form Seven Certificate BIOLOGY 2009 QUESTION and ANSWER BOOKLET Write your Student Personal Identification Number (SPIN) on the top right hand corner of this page and on the fold-out flap on the last page. Answer ALL QUESTIONS. Write your answers in the appropriate spaces provided in this booklet. If you need more space for answers‚ ask the Supervisor for extra paper. Write your SPIN on all extra sheets used and
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Relative frequency of a category = Frequency of that category Sum of all frequencies Class width = Upper boundary– Lower boundary Class midpoint or mark = Lower limit+ Upper limit/2 Approximate class width=Largest value -mallest value / Number of classes Relative frequency of a class=Frequency of that class/Sum of all frequencies Cumulative relative frequency=Cumulative frequency of a class/Total observations in the data set Mean = Average ‚ Median ‚ Mode Range = Largest value–
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property. It does not contain the ideas‚ or writing of other individuals/authors. Author ___________________________ Date ___________________ Lab Instructor ____________________ Lab Section # ____________ The Change in Allele Frequency of the Male Cichlid Fish Population General Research Question: Lake Malawi’s cichlid male population of fish are tested on their ability to build bowers to attract the female population. Altering this extended phenotype‚ or ability to
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dominant alleles for a gene to all the recessive alleles for the gene‚ you get all of the alleles for that gene‚ or 100% of the alleles for the gene. (Note: This assumes the gene has only two alleles.) p2 + 2pq + q2 1: If you combine all the individuals that are homozygous dominant for a gene with all the heterozygotes and homozygous recessive individuals for that gene‚ you have counted or combined all the individuals in the population that carry that gene. p^2=dominant frequency q^2=recessive
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Plants vs. Zombies: A Lesson on Artificial Selection and Classification Team Name: Team Members: Performance Task: There is a Zombie Apocalypse caused by a comet that traveled too close to the earth. People who were not sheltered during the comet’s passing were turned into zombies. It is believed that the comet was created by aliens to prepare our planet for invasion. Plants and Fungi were also affected by the comet and mutated and now carry many unusual traits. For some unknown reason these plants
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The simulation experiment is intended to investigate the shift in population allele frequencies in response to selective pressure. We do not grow live populations and test them in our class due to the fact that we don’t have enough time. Also the populations have to go through generations which cannot be conducted in a classroom as a result of not being enough room to reproduce‚ and the organisms would not be in their natural habitat leading to the cause they might not even try to reproduce.This
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work and circle your answers. 1) If the frequency of a recessive allele is 30% in a population of 100 people‚ how many would you predict would be carriers of this allele‚ but would not express the recessive phenotype? q= 0.30 p= 0.70 Carriers = 2pq = 2(.3)(.7) = .42 #= (.42)(100) = 42 individuals 2) From a sample of 278 American Indians‚ the following MN blood types were obtained: MM = 78‚ MN = 139‚ NN = 61. Calculate the allele frequency of M and N. M= 0.53 N= 0.47 MM = 78/278
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• To observe how a disease can act as a selective force • To describe changes in allele frequencies in a population as a result of a selective force Hypothesis The starting ratio of HbA to HbS is 3:1; in a typical population‚ the Homozygous Dominant Gene would become the standard‚ but because carrying the Heterozygous version of the allele has an advantage to fighting Malaria it will become the dominant Allele for the population. The HbA/HbS gene will thrive because it helps in the fight against
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or writing of other individuals/authors. Author ___________________________ Date ___________________ Lab Instructor ____________________ Lab Section # ____________ General Research Question: How does the change in the alleles affect the pigment in the alligators; which also affects the fitness of the animal? Animals fight for survival daily‚ and sometimes their lives depend on their ability to adapt with their surrounding environments. Natural Selection is the process
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connected by three hydrogen bonds. In DNA‚ two DNA strands coil together to create a double-helix‚ this is where base pairing occurs between the two strands when hydrogenous bonds are created between two bases. Genes also have variants‚ which are called alleles‚ which play a large part in the inheritance of genes via
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