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mutations - s3.amazonaws.com
mutations - s3.amazonaws.com

... one brown eye and one blue eye.  Some cancers result from somatic mutations.  Can be passed on by asexual reproduction eg naval oranges, Royal Gala apples.  Not inheritable and only affect organism in their lifetime. ...
Human Genetics Notes
Human Genetics Notes

... several members of noble families in Europe were affected by it. Queen Victoria had no ancestors with the condition but soon after the birth of her eighth child, Leopold, in 1853, it became evident that he had hemophilia. Queen Victoria was thus an example of how the condition can arise as a spontan ...
Unit 4 – Genetics Heredity Test Study Guide Chapter 13
Unit 4 – Genetics Heredity Test Study Guide Chapter 13

... 3. When studying linked genes, how do you explain the appearance of progeny that do not share either parental phenotype? 4. How can recombination data be used to map genetic loci? 5. Use the following recombination frequencies to create a linkage map for the following genes on the same chromosome: j ...
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6.3 Chromosomes structure — Further questions Q1. Bk Ch6 S6.3

... Y-linked inheritance refers to the inheritance of genes carried on the Y chromosome. The Y chromosome carries fewer genes than the X chromosome and most of these genes are involved in the determination of sex and fertility in males. However, there are some other characteristics determined by genes c ...
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xx, y:y: j

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Ch. 14 The Human Genome-Sec. 1 Human Heredity
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... • Some genetic diseases are sex-linked. The pattern of inheritance is different with sex-linked genes due to their location on sex chromosomes.. • Application: Red-green colour blindness and haemophilia as examples of sex-linked inheritance. • Skill: Construction of Punnett grids for predicting the ...
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Terms and Definitions 2017 File

... An allele that shows up in the phenotype if it is present in the genotype An allele that only shows up in the phenotype if it is homozygous in the genotype X or Y chromosome Differences in a particular characteristic of an organism which make each organism unique Process by which organisms which hav ...
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... Objective: In this activity, the students are introduced to the human genome and what can be  observed about it by looking at chromosome data analyzed by 23andMe.   They will discover that:  1. Chromosomes are numbered and organized by scientists from largest to smallest (with  one exception ­ chrom ...
Chapter 4 Section 1: Living Things Inherit Traits in Patters
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... These genes code for the expression of traits Cells contain pairs of chromosomes, with one chromosome coming from each of the parents. Chromosome pairs are called homologs. ...
Dragon Genetics
Dragon Genetics

... To test whether baby dragons with wings and baby dragons without wings will be equally likely to have big horns, you will carry out a simulation of the simultaneous inheritance of the genes for wings and horns. Since the father is homozygous (wwhh), you know that all of the father's sperm will be wh ...
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... (HMSN I) has been shown to result from a small duplication on short arm of chromosome ...
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Sex Linked Genes

... daughter, Alice of Athlone, had one hemophilic son (Rupert) and two other children—a boy and a girl—whose status is unknown. a) What is the probability that her other son was hemophilic? b) What is the probability that her daughter was a carrier? Hemophilic? c) What is the probability that both chil ...
Section 1 Review
Section 1 Review

... The chemical colchicine is a “spindle poison” that interferes with the organization of the spindle apparatus. Somatic cells undergoing division in the presence of colchicine arrest at metaphase. Eventually the splitting of the centromeres that is characteristic of anaphase occurs, but cell division ...
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Karyotype



A karyotype (from Greek κάρυον karyon, ""kernel"", ""seed"", or ""nucleus"", and τύπος typos, ""general form"") is the number and appearance of chromosomes in the nucleus of a eukaryotic cell. The term is also used for the complete set of chromosomes in a species, or an individual organism.Karyotypes describe the chromosome count of an organism, and what these chromosomes look like under a light microscope. Attention is paid to their length, the position of the centromeres, banding pattern, any differences between the sex chromosomes, and any other physical characteristics. The preparation and study of karyotypes is part of cytogenetics. The study of whole sets of chromosomes is sometimes known as karyology. The chromosomes are depicted (by rearranging a photomicrograph) in a standard format known as a karyogram or idiogram: in pairs, ordered by size and position of centromere for chromosomes of the same size.The basic number of chromosomes in the somatic cells of an individual or a species is called the somatic number and is designated 2n. Thus, in humans 2n = 46. In the germ-line (the sex cells) the chromosome number is n (humans: n = 23).p28So, in normal diploid organisms, autosomal chromosomes are present in two copies. There may, or may not, be sex chromosomes. Polyploid cells have multiple copies of chromosomes and haploid cells have single copies.The study of karyotypes is important for cell biology and genetics, and the results may be used in evolutionary biology (karyosystematics) and medicine. Karyotypes can be used for many purposes; such as to study chromosomal aberrations, cellular function, taxonomic relationships, and to gather information about past evolutionary events.
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