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dragon genetics lab - Aurora Public Schools
dragon genetics lab - Aurora Public Schools

... 2. Explain how dropping each of the sticks repeatedly, illustrates Mendel’s Law of Independent Assortment? [First state the law.] 3. The gene for fangs is recessive, yet if most of the dragons had fangs, how could this happen? [Hint. The gene that causes dwarfism (achondroplasia) in humans is domina ...
ABG300 (notes 08) - The Federal University of Agriculture, Abeokuta
ABG300 (notes 08) - The Federal University of Agriculture, Abeokuta

... Genetics could be defined as science of heredity concerned with behaviour of genes passed from parents to offspring in the reproductive process. It is a branch of Biology concerned wit heredity and variation. It involves the study of cells, individuals, their offspring and the population within whic ...
Unit III: GENETICS
Unit III: GENETICS

... of independent assortment because they tend to be inherited together. For example : genes on the same chromosome cannot be separated. They are called linked genes. However , later in his studies he found that sometimes linked genes do separate. ...
Test 1
Test 1

...  What is a X2 test? What is its purpose? Know how to carry out a X2 test (for both monohybrid and dihybrid crosses)  Pedigrees: Know the conventions and possible modes of inheritance for various conditions.  Be able to determine the mode of inheritance and give genotypes of individuals in pedigre ...
Drosophila Genetics
Drosophila Genetics

... chromosomal rearrangements, fly anatomy, fly stocks, cytologic maps, and a host of other information useful to the fly researcher. Proper care and attention are necessary to ensure that one's fly stocks remain healthy. The following points need to be remembered and attended to at all time to mainta ...
Fulltext PDF
Fulltext PDF

... (in the case of males) remain coalesced into a common chromocentre (cc). Since the homologous chromosomes show tight somatic pairing (as in most other dipterans), each of the chromosome arms actually corresponds to the two homologs (the two homologs may appear unpaired over short regions in rare cas ...
Welcome AP Super
Welcome AP Super

... lysomomes break them down using beta oxidation for use in cellular respiration. The lysosomes associated with this disorder are missing an enzyme to be able to do this; so they just fill up with lipids. The cells fill with lipids and then die. – This disorder mainly affects the Jewish Culture becaus ...
AP Inheritance
AP Inheritance

... The probability of producing pp = 1/2 x 1/2 = 1/4. The probability of producing yy = 1/2 x 1 = 1/2. The probability of producing Rr = 1/2 x 1 = 1/2. Therefore, the probability of all three being present (ppyyRr) in one offspring is 1/4 x 1/2 x ...
The nucleotide sequence of Saccharomyces cerevisiae
The nucleotide sequence of Saccharomyces cerevisiae

... 1,250,000) which makes up half of chromosome IV has several distinctive features. First, as with most of the chromosomes, it has more or less regularly spaced regions rich in G+C, but its central domain has a lower G+C content. Second, this central domain contains all of the Ty and most of the LTR e ...
Meiosis and Sexual Reproduction
Meiosis and Sexual Reproduction

... • Many genes exist in several variant forms in a large population • Homologous copies of a gene may encode identical or different genetic information • The variants that exist for a gene are called alleles • An individual may have:  Identical alleles for a specific gene on both homologs (homozygous ...
Human Heredit
Human Heredit

...  The child must receive two copies of the defective gene -- one from each parent - in order to become sick  Most common Eastern European Jews ...
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... Red-green color blindness Red-green color blindness means that a person cannot distinguish shades of red and green. Males are affected 16 times more often than females, because the gene is located on the X chromosome. In color-blind men, the green or red cones worked improperly. The genes for the r ...
Fig. 10-5, p. 158
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...  One parent alone transmits genetic information to offspring. (all clones)  Sexual reproduction can be an alternative adaption in changing environments. ...
Genetics
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... where crossing over takes place. Crossing over does not require the breakage an reunion of thick, compact chromosome pieces, but of individual DNA molecules (nucleotides+nucleotides). There are 223 combination possible in humans for to independent assort (8million possibilities) 1 in 70 million chan ...
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... Phenotype can depend on interactions of alleles. • In incomplete dominance, neither allele is completely dominant nor completely recessive. – Heterozygous phenotype is intermediate between the two homozygous phenotypes – Homozygous parental phenotypes not seen in F1 offspring (DON’T COPY) ...
Skema Biologi kertas 2 percubaan SPM Perak
Skema Biologi kertas 2 percubaan SPM Perak

... - an abnormal gamete is fertilised with a normal gamete, an abnormal zygote will be produced - the abnormal zygote will develop into a baby, the baby will have genetic disorder - for example down syndrom baby have 47 chromosomes, an extra chromosomes at the chromosome number 21. - a Klinefilter’s sy ...
Unit 8.2: Human Inheritance
Unit 8.2: Human Inheritance

... blindness. People with this trait cannot distinguish between the colors red and green. More than one recessive gene on the X chromosome codes for this trait, which is fairly common in males but relatively rare in females (Figure below). ...
DNA Sequence Variation in the Human Y Chromosome: Functions
DNA Sequence Variation in the Human Y Chromosome: Functions

... often show copy number variation. In cases of repeated abortion, DYZ1 copies were found to be far below the normal range showing as few as 95 (Fig. 5a). Surprisingly, males exposed to NBR showed more copies of the DYZ1 in many samples compared to that in the normal ones (Fig. 5b). Though the mechani ...
GENERAL GENETICS
GENERAL GENETICS

... crossing over has to be sufficiently precise that not a single nucleotide is lost or added at the crossover point if it occurs within a gene. Otherwise a frameshift would result and the resulting gene would produce a defective product or, more likely, no product at all. ...
Genetics Notes Powerpoint
Genetics Notes Powerpoint

... X-inactivation (Barr Bodies • X-chromosome inactivation occurs early in embryonic development. In a given cell, which of a female's X chromosomes becomes inactivated and converted into a Barr body is a matter of chance (except in marsupials like the kangaroo, where it is always the father's X chrom ...
Case Report Section
Case Report Section

... CBFB /MYH11 genes commonly seen in inv(16)(p13q22) bearing leukemia. The CBFB/MYH11 gene fusion is strongly associated with AML-M4 with abnormal eosinophils. Generally, the fusion is generated from inv(16)(p13q22) or t(16;16) with the inversion being much more common than translocation (Le Beau et a ...
Genetics Since Mendel
Genetics Since Mendel

... how a trait is inherited, they can predict the probability that a baby will be born with a specific trait. Pedigrees also are important in breeding animals or plants. Because livestock and plant crops are used as sources of food, these organisms are bred to increase their yield and nutritional conte ...
3. How are Connie and Derek related to each
3. How are Connie and Derek related to each

... Use the DNA sequences above to answer the following questions: 9. According to the samples above, what appears to be the normal (unmutated) sequence of the FANCC gene? 10. Which of the following describes the mutation? a. A substitution of cytosine with guanine b. A deletion of a cytosine base c. A ...
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... pure breeding stocks). What will be the appearance of the F1 offspring? A. all bobbed B. bobbed males; wild type females C. wild type males; bobbed females D. ½ bobbed and wild type males; all wild type females E. all wild type 5. In poultry, sex is determined by the ZW rather than the XY system. A ...
Chapter 10: Genes and Chromosomes
Chapter 10: Genes and Chromosomes

... • In order to make the enzymes, RNA polymerase must move along the genes on the chromosomes, producing mRNA in the process • Before the RNA polymerase can get to the desired genes, it must first attach to the promoter region near the genes • One the RNA polymerase attaches to the promoter, it can mo ...
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Skewed X-inactivation

Skewed X chromosome inactivation occurs when the inactivation of one X chromosome is favored over the other, leading to an uneven number of cells with each chromosome inactivated. It is usually defined as one allele being found on the active X chromosome in over 75% of cells, and extreme skewing is when over 90% of cells have inactivated the same X chromosome. It can be caused by primary nonrandom inactivation, either by chance due to a small cell pool or directed by genes, or caused by secondary nonrandom inactivation, which occurs by selection. Most females will have some levels of skewing. It is relatively common in adult females; around 35% of women have skewed ratio over 70:30, and 7% of women have an extreme skewed ratio of over 90:10. This is of medical significance due to the potential for the expression of disease genes present on the X chromosome that are normally not expressed due to random X inactivation. X chromosome inactivation occurs in females to provide dosage compensation between the sexes. If females kept both X chromosomes active they would have twice the number of active X genes than males, who only have one copy of the X chromosome. At approximately the time of implantation (see Implantation (human embryo), one of the two X chromosomes is randomly selected for inactivation. The cell undergoes transcriptional and epigenetic changes to ensure this inactivation is permanent. All progeny from these initial cells will maintain the inactivation of the same chromosome, resulting in a mosaic pattern of cells in females.
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