The first published report of a man with a 47‚XYY chromosome constitution was by Dr. Avery A. Sandberg‚ et al. in 1961. It was an incidental finding in a normal 44-year-old‚ 6 ft. [183 cm] tall man of average intelligence. [edit] Effects [edit] Physical traits XYY syndrome typically causes no unusual physical features or medical problems. Males with this syndrome may be slightly taller than average and are typically a few centimeters taller than their father and siblings. Skeletal malformations
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Chromosomal Disorder: (Turner Syndrome) Introduction Turner Syndrome is a condition that only alters the development of girls and women. Most girls and women have two full and complete X chromosomes while girls with turner syndrome have only part of the second X chromosome. Women and girls are diagnosed with turner syndrome have features such as slow growth rates‚ a webbed neck‚ broad shoulders‚ and widely spaced nipples. They also have swelling hands and feet‚ heart defects‚ kidney problems‚ and
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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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LESSON #9 22a) There would be 3 chromosomes present in each of the cells that make up the stomach of mosquito. 22b) Interphase | b | Prophase | C | Metaphase | D | Anaphase | A | Telophase | E | 22c) There would be 3 chromosomes present in the sperm cells of a mosquito. 22d) Interphase | C | Prophase 1 | A | Metaphase 1 | I | Anaphase 1 | E | Telophase 1 | F | Prophase ii | H | Metaphase ii | B | Anaphase ii | G | Telophase ii
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1. Paracrine signaling A) involves secreting cells acting on nearby target cells by discharging a local regulator into the extracellular fluid. B) requires nerve cells to release a neurotransmitter into the synapse. C) occurs only in paracrine yeast cells. D) has been found in plants but not animals. E) involves mating factors attaching to target cells and causing production of new paracrine cells. 2. Which of the following is true of synaptic signaling and hormonal signaling? A)
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Genetics Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Pea plants were particularly well suited for use in Mendel’s breeding experiments for all of the following reasons except that a.|peas show easily observed variations in a number of characters‚ such as pea shape and flower color.| b.|it is possible to control matings between different pea plants.| c.|it is possible to obtain large numbers of progeny from any given
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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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The three particles that make up atoms are d. protons‚ neutrons‚ and electrons. Which of the following statements about a compound is true? A. The physical and chemical properties of a compound are usually very different from those of the elements from which it is formed. A covalent bond is formed as the result of b. sharing electrons. In a water molecule‚ shared electrons spend more time around the oxygen atom than the hydrogen atoms. As a result‚ the oxygen atom is a. slightly negative.
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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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