NSG 530 Exam 1 Questions and Correct Answers the Latest Update
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Course
NSG
Institution
NSG
Interphase
cell feeds, metabolizes and grows while replicating DNA in preparation for mitosis
Prophase
first appearance of chromosomes (will be 92)
Metaphase
Centrioles pull chromosomes to opposite sides of cell (chromatid) - 46 each side
Anaphase
Centromeres split and sister chromatids ...
✓ when an organism has three copies of every chromsome instead of two
Tetrapoloidy
✓ euploid has 92 chromosomes and fetus usually does not survive
Huntington's disease
✓ Single gene disorder (trinucleotide repeat mutation)
✓ Autosomal dominant (50% chance of passing it on)
✓ Progressive neurologic disease with late onset (40s)
✓ Prevention- genetic testing for pregnancy planning
Cystic fibrosis
✓ 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
✓ XO chromosomal disorder, monosomy of X-affects females
✓ Short stature, webbed neck, undeveloped breasts but female genitalia, usually sterile
Down syndrome
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