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Central Dogma: Molecular GeneKcs
Central Dogma: Molecular GeneKcs

... chromosomes are composed of genes alleles on different chromosomes assort independently Theory of natural selection heritable variation differential reproductive success ...
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... In prokaryotic cells, DNA is located in the cytoplasm. Most prokaryotes have a single DNA molecule containing nearly all of the cell’s genetic information. Eukaryotic DNA is located in the cell nucleus inside chromosomes. Each chromosome contains a single, long, coiled DNA molecule. The mitochondria ...
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Fetal Physiology

PBS Unit 3 Key Terms
PBS Unit 3 Key Terms

... Any of the alternative forms of a gene that may occur at a given locus. A chromosome that is not directly involved in determining sex, as opposed to a sex chromosome. Any of the usually linear bodies in the cell nucleus that contain the genetic material. A genetic trait is considered dominant if it ...
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What is a mutation?

... codon into one of the STOP codons • Silent : ANY mutation that causes no change in the protein and cannot be detected without sequencing the gene ...
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genetics_topics_videos_casestudies_table.

Chapter 6 and 9 - Wando High School
Chapter 6 and 9 - Wando High School

... 13. What happens to the sister chromatids during anaphase? Centromere splits and one half of each sister chromatid pair heads to an opposite pole 14. What happens in telophase? Spindle is broken down and the nuclear envelope reappears 15. Describe cytokinesis in a plant cell and in an animal cell. A ...
Chapter 6 and 9 - Wando High School
Chapter 6 and 9 - Wando High School

... 13. What happens to the sister chromatids during anaphase? Centromere splits and one half of each sister chromatid pair heads to an opposite pole 14. What happens in telophase? Spindle is broken down and the nuclear envelope reappears 15. Describe cytokinesis in a plant cell and in an animal cell. A ...
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SI Worksheet 11

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DNA, Genes, and Chromosomes

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Unit VII: Genetics

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... • DNA Polymorphism (“many forms”) – Regions of DNA which differ from person to person • Locus (plural = loci) – Site or location on a chromosome • Allele – Different variants which can exist at a locus • DNA Profile – The combination of alleles for an individual ...
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Chapter 9 DNA: THE Genetic Material

... Meaning the capsule was not involved with killing the mice He mixed harmless live R bacteria with the harmless heat-killed S bacteria-mice died ...
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Final Review Packet - Mercer Island School District

... 32. Explain the process of DNA replication. When does DNA replication occur? What enzymes are involved? In the final result, what part of the two DNA molecules that is produced is original and what part is new? ...
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7.014 Problem Set 3

... For each model below, indicate whether the editor should accept or reject the paper (i.e. whether the model is plausible or not) and explain your advice. If your advice is based on data the editor has not yet seen, explain what the data is and how it will affect the plausibility of the model. If you ...
Page 1 Name KEY_______________________ Genetics C3032
Page 1 Name KEY_______________________ Genetics C3032

... Self progeny will be mutant males and hermaphrodites. Therefore, the mutation is recessive if both WT males and hermaphrodites are produced. If only WT hermaphrodites are produced, the mutation is W-linked dominant. ...
EXAM B
EXAM B

... A.cure genetic disorders. B.determine the sequences of genes. C.remove mutations from genes. D.change dominant alleles to recessive alleles. ...
Gene mutations and their effects
Gene mutations and their effects

... temperature the enzyme is denatured, but at the extremities of the body where the temperature is several degrees lower, the enzyme remains active and pigment is produced. Siamese cats are another example. ...
Cut-and-paste DNA: fixing mutations with `genome editing`
Cut-and-paste DNA: fixing mutations with `genome editing`

... Gene silencing is definitely one of the most important therapeutic approaches to Huntington’s disease. But what if we could actually go one further and remove the mutation that causes HD from the DNA of patients? The idea seemed completely impossible until recently. Cells have mechanisms that repair ...
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Cell-free fetal DNA

Cell-free fetal DNA (cffDNA) is fetal DNA circulating freely in the maternal blood stream. It can be sampled by venipuncture on the mother. Analysis of cffDNA provides a method of non-invasive prenatal diagnosis.cffDNA originates from the trophoblasts making up the placenta. It is estimated that 2-6% of the DNA in the maternal blood is fetal in origin. The fetal DNA is fragmented and makes its way into the maternal bloodstream via shedding of the placental microparticles into the maternal bloodstream (figure 1). Studies have shown that cffDNA can first be observed as early as 7 weeks gestation, and the amount of cffDNA increases as the pregnancy progresses. cffDNA diminishes quickly after the birth of the baby, so that it is no longer detectable in the maternal blood approximately 2 hours after birth. cffDNA is significantly smaller than the maternal DNA in the bloodstream, with fragments approximately 200bp in size. Many protocols to extract the fetal DNA from the maternal plasma use its size to distinguish it from the maternal DNA.Studies have looked at, and some even optimized, protocols for testing non-compatible RhD factors, sex determination for X-linked genetic disorders and testing for single gene disorders. Current studies are now looking at determining aneuploidies in the developing fetus. These protocols can be done earlier than the current prenatal testing methods, and have no risk of spontaneous abortion, unlike current prenatal testing methods. Non-invasive prenatal diagnosis (NIPD) has been implemented in the UK and parts of the US; it has clear benefits above the standard tests of chorionic villi sample (CVS) and amniocentesis which have procedure-related miscarriage risks of about 1 in 100 pregnancies and 1 in 200 pregnancies, respectively.As a method of prenatal diagnosis, cell-free fetal DNA techniques share the same ethical and practical issues, such as the possibility of prenatal sex discernment and sex selection.
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