NSG 530 EXAM 1 EXAM WITH CORRECT
QUESTIONS AND ANSWERS 2025
Interphase - CORRECT-ANSWERS>>>>cell feeds, metabolizes and grows while
replicating DNA in preparation for mitosis
Prophase - CORRECT-ANSWERS>>>>first appearance of chromosomes (will be 92)
Metaphase - CORRECT-ANSWERS>>>>Centrioles pull chromosomes to opposite
sides of cell (chromatid) - 46 each side
Anaphase - CORRECT-ANSWERS>>>>Centromeres split and sister chromatids are
pulled apart
Telophase - CORRECT-ANSWERS>>>>New nuclear membrane formed around each
group of 46 chromosomes *When it goes right, euploid cells are produced*
Nondisjunction - CORRECT-ANSWERS>>>>Error in meiosis in which homologous
chromosomes fail to separate.
Polyploidy - CORRECT-ANSWERS>>>>condition in which an organism has extra sets
of chromosomes
, Triploidy - CORRECT-ANSWERS>>>>when an organism has three copies of every
chromsome instead of two
Tetrapoloidy - CORRECT-ANSWERS>>>>euploid has 92 chromosomes and fetus
usually does not survive
Huntington's disease - CORRECT-ANSWERS>>>>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 - CORRECT-ANSWERS>>>>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 - CORRECT-ANSWERS>>>>XO chromosomal disorder, monosomy
of X-affects females
Short stature, webbed neck, undeveloped breasts but female genitalia, usually sterile
QUESTIONS AND ANSWERS 2025
Interphase - CORRECT-ANSWERS>>>>cell feeds, metabolizes and grows while
replicating DNA in preparation for mitosis
Prophase - CORRECT-ANSWERS>>>>first appearance of chromosomes (will be 92)
Metaphase - CORRECT-ANSWERS>>>>Centrioles pull chromosomes to opposite
sides of cell (chromatid) - 46 each side
Anaphase - CORRECT-ANSWERS>>>>Centromeres split and sister chromatids are
pulled apart
Telophase - CORRECT-ANSWERS>>>>New nuclear membrane formed around each
group of 46 chromosomes *When it goes right, euploid cells are produced*
Nondisjunction - CORRECT-ANSWERS>>>>Error in meiosis in which homologous
chromosomes fail to separate.
Polyploidy - CORRECT-ANSWERS>>>>condition in which an organism has extra sets
of chromosomes
, Triploidy - CORRECT-ANSWERS>>>>when an organism has three copies of every
chromsome instead of two
Tetrapoloidy - CORRECT-ANSWERS>>>>euploid has 92 chromosomes and fetus
usually does not survive
Huntington's disease - CORRECT-ANSWERS>>>>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 - CORRECT-ANSWERS>>>>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 - CORRECT-ANSWERS>>>>XO chromosomal disorder, monosomy
of X-affects females
Short stature, webbed neck, undeveloped breasts but female genitalia, usually sterile
