environmental influence during that person’s life are not inherited‚ they die off with the person. Chapter nine also discusses characters and traits of an organism. We learned that our physical traits are called a "phenotype" and that our DNA‚ or genetic make-up is called a "genotype". I now know that one single gene can be responsible for a disorder. I used to think that disorders were caused by multiple problems and not just one gene. Heterozygotes are two non-matching genes and homozygotes are
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David Khal Process of Science What Can Fruit Flies Reveal about Inheritance? Lab Notebook Chi-Square test for Case 1 Phenotype Observed No. (o) Expected No. (e) (o-e) (o-e) 2 (o-e) 2 e Red eyes 31 33 2 4 0.1212 Sepia eyes 13 11 2 4 0.3636 2 (to the nearest ten-thousandth) 0.4848 Questions 1. Why is it important to remove the adults in the parental generation? To keep the tests accurate‚ it is important to separate the adults from the parental generation so you know you are
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inheritance 1. An AABb individual is mated with another AABb individual. The possible number of genetically different kinds of offspring is _____. a. 3 b. 2 c. 9 d. 4 e. 1 2. The most common phenotype in a natural population is referred to as the _____. a. Mutant phenotype b. Wild type c. Liked gene d. Autosome e. Genotype 3. The most common lethal genetic disease in the United States is _____. a. PKU b. Huntington’s disease c. Sickle-cell disease d. Hemophilia e. Cystic fibrosis 4. An important technique
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nurture. True Response Feedback: Virtually no aspects of child development are due exclusively to either heredity or environment. 8. A strength of correlational research is that it can be used to determine cause and effect. False Response Feedback: Correlational research can never be used to determine cause and effect. 9. A strength of field experiments is that the results are more likely to be representative of behavior in real-world settings than results obtained in a laboratory. True Response
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NAME: Human Genetics Lab Data and Journal Questions Fill out and post to the discussion board. Human Phenotypes and Genotypes | | | | Check only one: | | Trait | Your Phenotype | Possible Genotype(s) | Dominant | Recessive | Intermediate | a | Tongue Rolling | Can Not roll Tongue | rr | x | | | b | Earlobes | Unattached | EE‚ Ee | x | | | c | Hairline | Widow’s Peak | WW‚ Ww | x | | | d | Freckles | No Freckles | ff | | x | | e | Eye Shape | Almond
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may have shaped human behaviour. Genes carry the instructions for the development of characteristics like intelligence‚ temperament and height. The main focus on how genetics has influenced our behaviour has looked at genotype and phenotype. Genotype is the genes a person has. Phenotype is the characteristics their genes produce. The genetic basis of behaviour has focused on trying to identify how much behaviour is influenced by genes and how much is influenced by the environment. Identical and non-identical
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Note: This copy is for your personal‚ non-commercial use only. To order presentation-ready copies for distribution to your colleagues or clients‚ use the RadioGraphics Reprints form at the end of this article. EDUCATION EXHIBIT 1891 Imaging of Ambiguous Genitalia: Classification and Diagnostic Approach1 CME FEATURE See accompanying test at http:// www.rsna.org /education /rg_cme.html Govind B. Chavhan‚ MD‚ DNB • Dimitri A. Parra‚ MD • Kamaldine Oudjhane‚ MD • Stephen F. Miller‚ MD •
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fibre: a microtubule structure that facilitates the movement of chromosomes within a cell Centrosome: a structure that helps to form the spindle fibres Genome: the complete DNA sequence of an organism Sex chromosome: an X or Y chromosome‚ which determines the genetic sex of an organism Autosome: a chromosome that is not involved in determining the sex of an organism Homologous chromosome: a chromosome that contains the same sequence of genes as another chromosome Gene: a part of a chromosome that
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I. How are gametes different from somatic cells? 1. Somatic Cells A. Body Cells i. Eyes‚ Liver‚ Spleen 2. Gametes A. Sex Cells i. Sperm‚ Eggs a. Sperm- Male Sex Cells b. Eggs- Female Sex Cells II. What do the terms haploid and diploid mean? 1. Haploid A. A cell only has one copy of each chromosome i. Somatic Cells 2. Diploid A. A cell has two copies of each chromosome i. Gametes III. What are homologous chromosomes? 1. Two chromosomes--one inherited
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Gregor Mendel wondered is his principle of segregation worked with individuals who differed in two traits. To test this‚ Mendel crossed pure lined round‚ yellow seeds with pure lined wrinkled‚ green seeds. He predicted that the F_1 offspring would be heterozygous for both genes. Experiments had established that the allele for yellow seeds were the dominant allele (Y) and green seeds were the recessive allele (y). There were two different ways as to how seed shape and seed color would be passed onto
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