Human Genetic Disorders - Virtual Learning Environment
... Klinefelter's Syndrome Klinefelter's Syndrome is a genetic disorder affecting only males. It was first described by Dr. Harry Klinefelter in 1942. It occurs when a boy is born with an extra X chromosome (Fig:11), which causes the boy to produce less testosterone than a normal boy. Males afflicted by ...
... Klinefelter's Syndrome Klinefelter's Syndrome is a genetic disorder affecting only males. It was first described by Dr. Harry Klinefelter in 1942. It occurs when a boy is born with an extra X chromosome (Fig:11), which causes the boy to produce less testosterone than a normal boy. Males afflicted by ...
Document
... laboratory conditions in culture media. The culture medium generally contains the macronutrients and other supplementary materials like micronutrients necessary for plant growth and materials like vitamins, amino acids, carbohydrates and growth regulators. • Plant parts known as explants are culture ...
... laboratory conditions in culture media. The culture medium generally contains the macronutrients and other supplementary materials like micronutrients necessary for plant growth and materials like vitamins, amino acids, carbohydrates and growth regulators. • Plant parts known as explants are culture ...
Human Genetic Disorders - Virtual Learning Environment
... Klinefelter's Syndrome Klinefelter's Syndrome is a genetic disorder affecting only males. It was first described by Dr. Harry Klinefelter in 1942. It occurs when a boy is born with an extra X chromosome (Fig:11), which causes the boy to produce less testosterone than a normal boy. Males afflicted by ...
... Klinefelter's Syndrome Klinefelter's Syndrome is a genetic disorder affecting only males. It was first described by Dr. Harry Klinefelter in 1942. It occurs when a boy is born with an extra X chromosome (Fig:11), which causes the boy to produce less testosterone than a normal boy. Males afflicted by ...
NOTES ON STOCKS
... The scheme to synthesize there strains consisted of crossing the following I-IV single interchange strains with each other in all c o m b i n a t i o n s : T(I;lV) N M l 1 9 , T(l;lV) N M 1 4 0 , T(I;lV) NMl44, T(l;lV)NMlM, T(I;IV) N M 1 7 2 , T(I;IV) D304. Block cscospores from these intercrosses w ...
... The scheme to synthesize there strains consisted of crossing the following I-IV single interchange strains with each other in all c o m b i n a t i o n s : T(I;lV) N M l 1 9 , T(l;lV) N M 1 4 0 , T(I;lV) NMl44, T(l;lV)NMlM, T(I;IV) N M 1 7 2 , T(I;IV) D304. Block cscospores from these intercrosses w ...
Parental Alleles and Phenotypes
... 2. Mutation and sexual reproduction lead to genetic variation in a population. As a basis for understanding this concept: a. Students know meiosis is an early step in sexual reproduction in which the pairs of chromosomes separate and segregate randomly during cell division to produce gametes contain ...
... 2. Mutation and sexual reproduction lead to genetic variation in a population. As a basis for understanding this concept: a. Students know meiosis is an early step in sexual reproduction in which the pairs of chromosomes separate and segregate randomly during cell division to produce gametes contain ...
Biology Review
... Galápagos Islands, the founder effect, reproductive isolation, and competition all contributed to a) speciation. b) genetic equilibrium. c) stabilizing selection. d) genetic drift. ...
... Galápagos Islands, the founder effect, reproductive isolation, and competition all contributed to a) speciation. b) genetic equilibrium. c) stabilizing selection. d) genetic drift. ...
Document
... The multiplication and addition rules • Multiplication rule: the probability of two or more independent events occurring TOGETHER is calculated by multiplying their independent probabilities. Example: what is the probability to roll a dice and obtain three times the number 5? ...
... The multiplication and addition rules • Multiplication rule: the probability of two or more independent events occurring TOGETHER is calculated by multiplying their independent probabilities. Example: what is the probability to roll a dice and obtain three times the number 5? ...
Lecture 8
... One of the discoveries of McClintock was a phenomenon she called “breakage-fusion-bridge cycle”. Chromosome breakage occurred frequently at genetic locus, which she therefore called Dissociation (Ds). She later found that Ds locus could change its position in the genome, and that transposition of Ds ...
... One of the discoveries of McClintock was a phenomenon she called “breakage-fusion-bridge cycle”. Chromosome breakage occurred frequently at genetic locus, which she therefore called Dissociation (Ds). She later found that Ds locus could change its position in the genome, and that transposition of Ds ...
The factor - Classic Families
... Inherited characteristics are transmitted from generation to generation via a genetic code held in the DNA. This expression of different genes (plus the resulting synthesis of different proteins) is what distinguishes one cell from another, for example, muscle cell from brain ...
... Inherited characteristics are transmitted from generation to generation via a genetic code held in the DNA. This expression of different genes (plus the resulting synthesis of different proteins) is what distinguishes one cell from another, for example, muscle cell from brain ...
Cell Division - Science-with
... the first phase of mitosis chromosomes become visible centrioles migrate to opposite poles of the cell centrioles are small protein bodies found in the cytoplasm of animal cells that provides a site for spindle fibers to attach to. spindle fibres are protein structures that guide the movem ...
... the first phase of mitosis chromosomes become visible centrioles migrate to opposite poles of the cell centrioles are small protein bodies found in the cytoplasm of animal cells that provides a site for spindle fibers to attach to. spindle fibres are protein structures that guide the movem ...
ch 6 Jeopardy Meiosis and Mendel
... • A line of plants that has self-pollinated for long enough so that line becomes genetically uniform is called ______________ ...
... • A line of plants that has self-pollinated for long enough so that line becomes genetically uniform is called ______________ ...
Plant Telomere Biology
... then fused to recreate a dicentric chromosome (McClintock, 1938). The question she was asking now was whether this chromosome breakage-fusion-bridge cycle would continue indefinitely. To answer the question, McClintock placed her dicentric-generating chromosome 9 in a background with a normal chromo ...
... then fused to recreate a dicentric chromosome (McClintock, 1938). The question she was asking now was whether this chromosome breakage-fusion-bridge cycle would continue indefinitely. To answer the question, McClintock placed her dicentric-generating chromosome 9 in a background with a normal chromo ...
Genetics Lecture III
... (autosomal or x-linked, dominant or recessive) 3b ~ Students know the genetic basis for Mendel’s laws of segregation and independent assortment ...
... (autosomal or x-linked, dominant or recessive) 3b ~ Students know the genetic basis for Mendel’s laws of segregation and independent assortment ...
12q14 microdeletions
... 12q14 microdeletions A 12q14 microdeletion is a very rare genetic condition in which a tiny piece is missing from one of the 46 chromosomes – chromosome 12. Chromosomes are made up mostly of DNA and are the structures in the nucleus of the body’s cells that carry genetic information (known as genes ...
... 12q14 microdeletions A 12q14 microdeletion is a very rare genetic condition in which a tiny piece is missing from one of the 46 chromosomes – chromosome 12. Chromosomes are made up mostly of DNA and are the structures in the nucleus of the body’s cells that carry genetic information (known as genes ...
X-inactivation
... cultured in-vitro- 1981 (Martin et al) Human embryonic stem cells derived and cultured in-vitro-1998 (Thomson et al) ...
... cultured in-vitro- 1981 (Martin et al) Human embryonic stem cells derived and cultured in-vitro-1998 (Thomson et al) ...
Protocol for inserting transgene using Tn7 (6/1/06) This system uses
... replication. They are also low-copy plasmids, and will produce much lower amounts of DNA than standard ColE1 origins (for example pUC19). I use the Qiagen kits with the very low-copy plasmid modifications to obtain a good yield of DNA. 3. Transform plasmid into your strain, recover as usual, and sel ...
... replication. They are also low-copy plasmids, and will produce much lower amounts of DNA than standard ColE1 origins (for example pUC19). I use the Qiagen kits with the very low-copy plasmid modifications to obtain a good yield of DNA. 3. Transform plasmid into your strain, recover as usual, and sel ...
Alu elements and splicing events
... Numts (nuclear mitochondrial DNA sequences) are a type of promiscuous DNA, i.e., nuclear sequences of organelle (e.g., mitochondrial) origin. ...
... Numts (nuclear mitochondrial DNA sequences) are a type of promiscuous DNA, i.e., nuclear sequences of organelle (e.g., mitochondrial) origin. ...
BIO 103 Genetics Ch.12
... F2 generation: offspring resulting from the selffertilization of F1 plants F2 plants exhibited both forms of the trait: ¾ plants with the dominant form ¼ plant with the recessive form Mendel discovered the ratio is actually: 1 pure-bred dominant plant 2 hybrid dominant plants 1 pure-bred recessive p ...
... F2 generation: offspring resulting from the selffertilization of F1 plants F2 plants exhibited both forms of the trait: ¾ plants with the dominant form ¼ plant with the recessive form Mendel discovered the ratio is actually: 1 pure-bred dominant plant 2 hybrid dominant plants 1 pure-bred recessive p ...
Slcyt, a Newly Identified Sex-Linked Gene, Has
... evolved from a single ancestral autosome that can be identified by its gene content (Filatov 2005), but these new results show that at least part of the X near the PAR has recently been added to one or both of the XY chromosome pair. ...
... evolved from a single ancestral autosome that can be identified by its gene content (Filatov 2005), but these new results show that at least part of the X near the PAR has recently been added to one or both of the XY chromosome pair. ...
Butterfly gene flow goes berserk
... loci. They argue that a locus that increases fitness in butterflies, such as a mimicry locus, should be expected to spread and potentially become fixed in that species. Neutral or deleterious alleles at this locus should then undergo random recombination and accumulate further substitutions, decreas ...
... loci. They argue that a locus that increases fitness in butterflies, such as a mimicry locus, should be expected to spread and potentially become fixed in that species. Neutral or deleterious alleles at this locus should then undergo random recombination and accumulate further substitutions, decreas ...
Draft of first homework
... Many students thought that tiling array probes are better if they overlap mRNAs (and, conversely, that probes are bad if they are not overlapping mRNAs). This is not true, as the whole point with a tiling array is to be unbiased in terms of annotation, so that you can see any mRNAs, including unknow ...
... Many students thought that tiling array probes are better if they overlap mRNAs (and, conversely, that probes are bad if they are not overlapping mRNAs). This is not true, as the whole point with a tiling array is to be unbiased in terms of annotation, so that you can see any mRNAs, including unknow ...
Lecture Outline
... 2. Each gamete receives one allele of each gene (= haploid state). 3. Fertilization restores the diploid state—Fusion of egg and sperm brings together two alleles of each gene. (Fig. 13.4b) a. Homozygous—individual with two copies of the same allele for a particular gene b. Heterozygous—individual w ...
... 2. Each gamete receives one allele of each gene (= haploid state). 3. Fertilization restores the diploid state—Fusion of egg and sperm brings together two alleles of each gene. (Fig. 13.4b) a. Homozygous—individual with two copies of the same allele for a particular gene b. Heterozygous—individual w ...
DNA - PGS Science
... • Children inherit features from their parents • If two parents have a certain characteristic then their child may show it even more (e.g. Mr Small + Little Miss Tiny = Mr Very Small!) • Some things such as glasses, scars and muscles we get from our environment, they are not inherited. ...
... • Children inherit features from their parents • If two parents have a certain characteristic then their child may show it even more (e.g. Mr Small + Little Miss Tiny = Mr Very Small!) • Some things such as glasses, scars and muscles we get from our environment, they are not inherited. ...
Polyploid
Polyploid cells and organisms are those containing more than two paired (homologous) sets of chromosomes. Most species whose cells have nuclei (Eukaryotes) are diploid, meaning they have two sets of chromosomes—one set inherited from each parent. However, polyploidy is found in some organisms and is especially common in plants. In addition, polyploidy occurs in some tissues of animals that are otherwise diploid, such as human muscle tissues. This is known as endopolyploidy. Species whose cells do not have nuclei, that is, Prokaryotes, may be polyploid organisms, as seen in the large bacterium Epulopicium fishelsoni [1]. Hence ploidy is defined with respect to a cell. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Male bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis, the sporophyte generation is diploid and produces spores by meiosis.Polyploidy refers to a numerical change in a whole set of chromosomes. Organisms in which a particular chromosome, or chromosome segment, is under- or overrepresented are said to be aneuploid (from the Greek words meaning ""not"", ""good"", and ""fold""). Therefore the distinction between aneuploidy and polyploidy is that aneuploidy refers to a numerical change in part of the chromosome set, whereas polyploidy refers to a numerical change in the whole set of chromosomes.Polyploidy may occur due to abnormal cell division, either during mitosis, or commonly during metaphase I in meiosis.Polyploidy occurs in some animals, such as goldfish, salmon, and salamanders, but is especially common among ferns and flowering plants (see Hibiscus rosa-sinensis), including both wild and cultivated species. Wheat, for example, after millennia of hybridization and modification by humans, has strains that are diploid (two sets of chromosomes), tetraploid (four sets of chromosomes) with the common name of durum or macaroni wheat, and hexaploid (six sets of chromosomes) with the common name of bread wheat. Many agriculturally important plants of the genus Brassica are also tetraploids.Polyploidy can be induced in plants and cell cultures by some chemicals: the best known is colchicine, which can result in chromosome doubling, though its use may have other less obvious consequences as well. Oryzalin will also double the existing chromosome content.