ethnicities. (http://www.huntington-study-group.org). Huntington’s disease is the result of a single mutated gene. Since Huntington’s disease is autosomal dominant‚ the gene is on an autosomal chromosome‚ and recently has been localized on the fourth autosomal chromosome pair. Any chromosome not considered as a sex chromosome‚ or is not involved in sex determination. It occurs in pairs in somatic cells and singly in sex cells (gametes) (An affected parent passes either the HD gene‚ or the other working gene
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BI 111 Study Guide Exam #1: Some of Ch. 4‚ the brief discussion summarizing Ch. 6‚ and Chptrs. 5‚ 7‚ and 8 HOW TO USE THIS STUDY GUIDE: You should be able to provide fairly detailed answers to the following questions and directions… this means you will probably use more room than is provided by the small spaces between them. Some of those answers will include things I talked about in lecture‚ as well as concepts that are explained by your textbook. You may want to reformat the guide on
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Ch. 18. viral and bacterial genetics Virus Not living‚ nucleic acids and proteins Viriods and prions Viriods: Single stranded circular Rna Prions: only protein Bacteria Living‚ prokaryotes 1 Seven characteristics common to life Cells and organization Energy use Respond to environmental change Regulation and homeostasis Growth and development Reproduction Change over the course of generations 2 Viruses Over 4‚000 different types of viruses Virus have their
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non-inherited chromosomal condition that only occurs in females. It’s cause when there is a complete or partial absence of the second x chromosome. A person with TS has monosomy X‚ which means that it only has one pair of X chromosome on all or some of it’s cells. When it’s only in some cells is called mosaicism. If a women has this syndrome and it’s a prime mover x-chromosome mosaicism. she is known for having a mosaic turner syndrome. A person with TS is missing one copy of the gene SHOX‚ which leads
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prophase: chromosomes condense metatphase: line up on eqator anaphase: pull apart telephases: nuclear membrane forming. 2 daughter cells 46 chromosomes in parent cell‚ > 2 daughter cells (46 chromosome each) Interphase= cell grows‚ DNA duplicates chromosomes‚ cell prepares for division Meiosis 1 parent cell > 4 daughter cells (23 chromosomes each) gametes= sperm/egg zygote= when sperm and egg meet ( end up with 46 chromosomes) prophase 1
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When or where would this process occur? 12. What does the cell use the released energy for? 13. Diagram the steps of mitosis. Label the centrioles‚ chromosomes‚ chromatin‚ chromatids‚ nuclear membrane‚ centromere‚ spindle fibers. 14. What is the purpose of mitosis? What is the purpose of meiosis? Define homologous chromosomes‚ sister chromatids. 15. Fill in the following table: Result is Haploid or diploid Function of process # of cells produced List a type of organism who uses
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Introduction The objective of the care of the special child assignment is to study a child with special needs in their typical everyday environment. I will study the child in the pre-school/ Montessori room. I will watch him working with the Special Needs Assistance* (SNA) and his interaction with the other children in the room. In this assignment I particular looked at: • The child’s use of space‚ environment and language. • To observe the child’s motor movements‚ both fine and gross
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2008). Mutations are permanent changes in the genetic material. A change in the DNA sequence of a gene 3 can alter the amino acid sequence of the protein coded by the gene. Mutations range in extent from a single nucleotide to a large segment of a chromosome (Campbell‚ 2008). Mutations may either be spontaneous‚ or induced by physical and chemical agents (Mendioro‚ et. al.‚ 2013). Mutagenesis‚ the creation of mutation‚ can occur in various ways. It could be
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independent assortment of chromosomes during meiosis. An interesting fact about ascospore arrangements is that there occurs no hybridization‚ and there are peculiar forms of cross over. Ascomycetes can also reproduce asexually by spores called conidia‚ which are spores that are dispersed by wind and are produced at the end of the hyphae. Another interesting fact about Sordaria is the ability to maintain a constant liner order‚ permitting the observer to detect the behavior of chromosomes during meiosis. The
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process known as meiosis. III. I am currently a biology major at CSU-Pueblo looking to pursue a degree in wildlife biology. IV. During the process of meiosis‚ diploid cells split in half‚ forming four haploid cells‚ which each have a single set of chromosomes. These cells are called either gametes or sex cells. Female gametes are egg and male gametes are sperm. Two meiotic divisions occur known as meiosis I and meiosis II‚ and each one of these divisions have four stages‚ which are; prophase‚ metaphase
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