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Chapter 14 – Cellular Reproduction ()
Chapter 14 – Cellular Reproduction ()

... forms thick, condensed structures called chromosomes. A chromosome is made up of two sister chromatids which are held together by a structure called a centromere Each sister chromatid contains an identical copy of the genetic information or DNA. Other events which occur during this stage are: ...
mitogenetics
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... Stability of Mitochondrial DNA • Mutatation rate 10X higher than nuclear DNA • Mutations generated by oxidation by-products • No protective histones • Ineffective DNA repair • Typically point mutations or deletions • Tolerance for deletions variable • Some deletions recurring in unrelated patients ...
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... Genetic disorder is an illness caused by abnormalities in genes or chromosomes, especially a condition that is present from before birth. Most genetic disorders are quite rare and affect one person in every several thousands or millions. ...
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... IAIB = Type AB ...
CELL DIVISION AND REPRODUCTION
CELL DIVISION AND REPRODUCTION

... –  growth factors, proteins that stimulate division, –  density-dependent inhibition, in which crowded cells stop dividing, and –  anchorage dependence, the need for cells to be in contact with a solid surface to divide. © 2012 Pearson Education, Inc. ...
the lecture in Powerpoint Format
the lecture in Powerpoint Format

...  Meiosis and mitosis are preceded by the duplication of chromosomes. However, – meiosis is followed by two consecutive cell divisions and – mitosis is followed by only one cell division. ...
Detachments from duplication bearing females
Detachments from duplication bearing females

... factors responsible for the kinetic activity was such that these cases represent essentially new combinations that have no counterpart in previous tests. They resemble the weak type yet consistently deviate from the 3 : 2 and 3 : 1 ratios in an unexpected direction; it should be noted that in these ...
BSCS Chapter 13
BSCS Chapter 13

... • A Punnett square is useful for calculating probable ratios of genotypes and phenotypes. • All the possible genotypes of the gametes one parent can produce are at the top of the square, and the genotypes of the other parent’s gametes are at the side. • The square is then filled in like a multiplica ...
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Meiosis I
Meiosis I

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Cell Reproduction - What It`s Like on the Inside
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Unit #8 Direction Sheet - Sonoma Valley High School
Unit #8 Direction Sheet - Sonoma Valley High School

... 8) From chapter 8 pages 163-165 titled "FORMATION OF GAMETES ", be able to; A) Explain how many spermatids are produced for each cell going through meiosis. B) Explain how many ootids are produced for each cell going through meiosis? C) Explain what polar bodies are and where they originate. 9) From ...
detection of y chromosome of bovine using testis specific protein
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... with a male cow and had been receiving Y chromosome influences through blood transfer from the male cow throughout the gestation. Other possible abnormalities are Klinefelter Syndrome (61,XXY), Turner Syndrome (59,X) and Trisomy (61,XXX). Cattle with chromosome abnormalities phenotypically look norm ...
MEIOSIS I
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THREE MITOSIS AND MEIOSIS
THREE MITOSIS AND MEIOSIS

... sister chromatids. The result is four haploid gametes. Mitotic cell division produces new cells genetically identical to the parent cell. Meiosis increases genetic variation in the population. Each diploid cell undergoing meiosis can produce 2" different chromosomal combinations, where n is the hapl ...
- ZytoVision GmbH
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... CBFA/CBFB transcription factor complex involved in myeloid differentiation. The chromosomal aberrations inv(16) (p13.1q22.1) and the related translocation t(16;16)(p13.1;q22.1), which have been detected in about 10% of patients with AML (acute myeloblastic leukemia), lead to the fusion of the CBFB g ...
Genetics - Dr Magrann
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... and mental retardation.  One day it might be possible to control the expression of that gene even before birth so that at least this symptom of Down syndrome does not appear. ...
Mendelian Genetics, cont. Thursday, October 30, 2008 SI Leader
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Drosophila melanogaster

... polytene chromosomes), with the Y and dot 4th chromosomes almost entirely heterochromatic. Roughly 60 Mbp is heterochromatic and 120 Mbp is euchromatic (clonable, sequencable, and containing most genes). It was also known that roughly 15% of the euchromatin is made up of transposons, primarily long ...
1 - CSU, Chico
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genetics and inheritance patterns - EDS
genetics and inheritance patterns - EDS

... Genes are the smallest units of the hereditary material. They are like “blueprints” for directing normal growth and development. Hundreds of genes are packaged on chromosomes which are found in every cell of the body. Humans have 23 pairs of chromosomes in each cell. Twenty-two of the chromosomes ar ...
Ch 13 Notes - Dublin City Schools
Ch 13 Notes - Dublin City Schools

... Concept 13.2: Life Cycles • A life cycle is the generation-to-generation sequence of stages in the reproductive history of an organism • A few more terms… • A karyotype is an ordered display of the pairs of chromosomes from a cell • Chromosomes in a homologous pair are the same length and carry gen ...
Reproduction in Plants - Amazing World of Science with Mr. Green
Reproduction in Plants - Amazing World of Science with Mr. Green

... Part of the cell which contains chromosomes Structures in the nucleus that are made from a chemical called DNA A chemical that contains the code for the characteristics of an organism (e.g. what that organism will look like). The coded instructions contained in DNA which give the organism its inheri ...
SNP Analysis (GAW15 data)
SNP Analysis (GAW15 data)

... major regions of linkage on chromosomes 2, 4, 7, 10 and 11. LOD scores remained positive in all family groups. On chromosomes 2, 7, and 11 the LOD scores from the families with one or more parents typed were higher, while on chromosomes 4 and 10, the LOD scores were higher for the set of families wi ...
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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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