1
NSG 530 EXAM 1 EXAM NEWEST VERSION -2025/2026- 100+
QUESTIONS AND VERIFIED ANSWERS 100% CORRECT
GUARANTEED SUCCESS
Nondisjunction
Error in meiosis in which homologous chromosomes fail to separate.
Polyploidy
condition in which an organism has extra sets of chromosomes
Fragile X syndrome
Chromosomal disorder (break in long arm of X)
Higher prevalence in males
Intellectual disability
Klinefelter syndrome
(XXY) chromosomal disorder 1:1000 male births
Male appearance, sparse body hair, mild intellectual disability
Atrophy
Decrease in cell size
"When cast is removed from left calf, it is smaller than the right calf"
Triploidy
when an organism has three copies of every chromsome instead of two
Tetrapoloidy
euploid has 92 chromosomes and fetus usually does not survive
, 2
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
Chromosomal disorder, trisomy 21
Affects both sexes
Intellectual disability, poor muscle tone, low nasal bridge, low set ears, protruding
tongue, epicanthal fold
Hypertrophy
Increase in cell size
NSG 530 EXAM 1 EXAM NEWEST VERSION -2025/2026- 100+
QUESTIONS AND VERIFIED ANSWERS 100% CORRECT
GUARANTEED SUCCESS
Nondisjunction
Error in meiosis in which homologous chromosomes fail to separate.
Polyploidy
condition in which an organism has extra sets of chromosomes
Fragile X syndrome
Chromosomal disorder (break in long arm of X)
Higher prevalence in males
Intellectual disability
Klinefelter syndrome
(XXY) chromosomal disorder 1:1000 male births
Male appearance, sparse body hair, mild intellectual disability
Atrophy
Decrease in cell size
"When cast is removed from left calf, it is smaller than the right calf"
Triploidy
when an organism has three copies of every chromsome instead of two
Tetrapoloidy
euploid has 92 chromosomes and fetus usually does not survive
, 2
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
Chromosomal disorder, trisomy 21
Affects both sexes
Intellectual disability, poor muscle tone, low nasal bridge, low set ears, protruding
tongue, epicanthal fold
Hypertrophy
Increase in cell size
