Anthropology 005 Problem Set # 4 Comparative method‚ altruism‚ and heritability‚ 1. Let me suggest an idea about the adaptive function of sleep: It did not originally evolve for rest and repair (though those functions may have been layered on later‚ at least in some species). Instead‚ I’ll propose that its primary function is to keep the organism out of harm’s way during phases to which it is poorly adapted. For example‚ day and night can differ dramatically in lighting‚ temperature‚ humidity
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fragments of different lengths after digestion of the DNA samples in question with specific restriction endonucleases. RFLP‚ as a molecular marker‚ is specific to a single clone/restriction enzyme combination. Most RFLP markers are co-dominant (both alleles in heterozygous sample will be detected) and highly locus-specific. An RFLP probe is a labeled DNA sequence that hybridizes with one or more fragments of the digested DNA sample after they were separated by gel electrophoresis‚ thus revealing a unique
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resulting from this testcross? The ratio for the offspring of this testcross is 1:1:1:1. See above. 5. Based on this phenotypic ratio‚ was the F1 wild-type female homozygous or heterozygous for the eye color allele? Explain your answer. The F1 wild-type female had a heterozygous eye color allele. This is why she had offspring of different types. 6. Based on this phenotypic ratio‚ was the F1 wild-type female homozygous or
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Chapter 22 Descent with Modification: Darwinian View of Life Overview: Darwin Introduces a Revolutionary Theory On November 24‚ 1859‚ Charles Darwin published On the Origin of Species by Means of Natural Selection. Darwin’s book drew a cohesive picture of life by connecting what had once seemed a bewildering array of unrelated facts. Darwin made two major points in The Origin of Species: I. Today’s organisms descended from ancestral species that were different from modern species. II. Natural
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ANTHROPOLOGY EXAM 1 (FEBRUARY 18‚ 2013) GENERAL ANTHROPOLOGY * Study of human kind‚ perspective of all people & all times * Full understanding of what it means “to be human” * Very diverse as a species BIOCULTURAL ANTHROPOLOGY * Understanding relationship between biology and culture HOLISTIC * Referring to the whole system * Relating to or concerning the whole system rather than just part of the system * e.g. medicine→treatment of the whole body * consider all
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e.16 2..After pairing at metaphase I chromosomes disjoin a. without centromeric fission. b. with chromatids together. c. into opposite daughter cells. d. a‚b & c are all true. 3. If a pair of chromosomes at metaphase I contain the alleles A & A in one chromosome and a & a in the other chromosome the first daughter cells will contain a. either a & a or A & A b. either A & a or a & A c. A & a and A & a d. AB‚ Ab‚ aB & ab e. a 4. One
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It talks about how those who carry both the wild type allele and the sickle cell allele will be better suited to survive than those who just carry the sickle cell allele. This is because those who have both will be able to produce more functioning red blood cells that will help extend life. Especially in areas that contain malaria is where these alleles come into play. If those with the two copies of sickle cell are infected with malaria they almost have
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HSC BIOLOGY TOPIC 2: BLUEPRINT OF LIFE HSC BIOLOGY TOPIC 2: BLUEPRINT OF LIFE 1) Evidence of evolution suggests that the mechanisms of inheritance‚ accompanied by selection‚ allow change over many generations. 1.1.1 Outline the impact of evolution of plants and animals of: * Changes in physical conditions in the environment * Changes in chemical conditions in the environment * Competition for resources
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Plant Genetics JANICE NALBONE Abstract This experiment is being done to show Mendel’s rule of dominance that says certain alleles are dominant and others are recessive. To show this‚ we are using tobacco seeds‚ a monohybrid cross comparing only one trait color. We are also showing Mendel’s law of segregation with a Dihybrid cross comparing two traits of color and texture. Introduction
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Genetic Drift Genetic drift‚ also known as allelic drift‚ is the change in the number of gene variants‚ alleles‚ in a population because of random sampling. The allele frequency in a population is the fraction of the copies of one gene that share a specific form. The alleles in the offspring are a sample of gene variants in its parents. Chance plays a part in whether one survives and carries its genes on‚ or does not. Genetic drift may cause gene variants to disappear completely resulting in reduced
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