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NSG 530 Exam 1 Study Guide Solutions

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NSG 530 Exam 1 Study Guide Solutions Interphase - ANSWER-cell feeds, metabolizes and grows while replicating DNA in preparation for mitosis Prophase - ANSWER-first appearance of chromosomes (will be 92) Metaphase - ANSWER-Centrioles pull chromosomes to opposite sides of cell (chromatid) - 46 ea...

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  • November 4, 2024
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  • 2024/2025
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KaylinHoffman
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NSG 530 Exam 1 Study Guide Solutions


Interphase - ANSWER✔✔-cell feeds, metabolizes and grows while replicating DNA in preparation for

mitosis


Prophase - ANSWER✔✔-first appearance of chromosomes (will be 92)


Metaphase - ANSWER✔✔-Centrioles pull chromosomes to opposite sides of cell (chromatid) - 46 each

side


Anaphase - ANSWER✔✔-Centromeres split and sister chromatids are pulled apart


Telophase - ANSWER✔✔-New nuclear membrane formed around each group of 46 chromosomes

*When it goes right, euploid cells are produced*


Nondisjunction - ANSWER✔✔-Error in meiosis in which homologous chromosomes fail to separate.


Polyploidy - ANSWER✔✔-condition in which an organism has extra sets of chromosomes


Triploidy - ANSWER✔✔-when an organism has three copies of every chromsome instead of two


Tetrapoloidy - ANSWER✔✔-euploid has 92 chromosomes and fetus usually does not survive


Huntington's disease - ANSWER✔✔-Single gene disorder (trinucleotide repeat mutation)



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, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024




Autosomal dominant (50% chance of passing it on)


Progressive neurologic disease with late onset (40s)


Prevention- genetic testing for pregnancy planning


Cystic fibrosis - ANSWER✔✔-Single gene disorder (CFTR gene mutation)


Autosomal recessive


Most common in white children


Defective transport of chloride ions cause salt imbalance- thickened secretions, digestive issues,

malnutrition. Males and females


Must inherit two copies of gene (1 from each parent)


Turner syndrome - ANSWER✔✔-XO chromosomal disorder, monosomy of X-affects females


Short stature, webbed neck, undeveloped breasts but female genitalia, usually sterile


Down syndrome - ANSWER✔✔-Chromosomal disorder, trisomy 21


Affects both sexes


Intellectual disability, poor muscle tone, low nasal bridge, low set ears, protruding tongue, epicanthal

fold


Fragile X syndrome - ANSWER✔✔-Chromosomal disorder (break in long arm of X)


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