NSG 530 Exam 1 Questions with
Detailed Correct Verified Answers 2026
Study Guide
Interphase --- correct answer ---cell feeds, metabolizes and grows while
replicating DNA in preparation for mitosis
Prophase --- correct answer ---first appearance of chromosomes (will be
92)
Metaphase --- correct answer ---Centrioles pull chromosomes to opposite
sides of cell (chromatid) - 46 each side
Anaphase --- correct answer ---Centromeres split and sister chromatids
are pulled apart
Telophase --- correct answer ---New nuclear membrane formed around
each group of 46 chromosomes *When it goes right, euploid cells are
produced*
Nondisjunction --- correct answer ---Error in meiosis in which homologous
chromosomes fail to separate.
Polyploidy --- correct answer ---condition in which an organism has extra
sets of chromosomes
, Triploidy --- correct answer ---when an organism has three copies of every
chromsome instead of two
Tetrapoloidy --- correct answer ---euploid has 92 chromosomes and fetus
usually does not survive
Huntington's disease --- correct answer ---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 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 --- correct answer ---XO chromosomal disorder,
monosomy of X-affects females
Short stature, webbed neck, undeveloped breasts but female genitalia,
usually sterile
Down syndrome --- correct answer ---Chromosomal disorder, trisomy 21
Detailed Correct Verified Answers 2026
Study Guide
Interphase --- correct answer ---cell feeds, metabolizes and grows while
replicating DNA in preparation for mitosis
Prophase --- correct answer ---first appearance of chromosomes (will be
92)
Metaphase --- correct answer ---Centrioles pull chromosomes to opposite
sides of cell (chromatid) - 46 each side
Anaphase --- correct answer ---Centromeres split and sister chromatids
are pulled apart
Telophase --- correct answer ---New nuclear membrane formed around
each group of 46 chromosomes *When it goes right, euploid cells are
produced*
Nondisjunction --- correct answer ---Error in meiosis in which homologous
chromosomes fail to separate.
Polyploidy --- correct answer ---condition in which an organism has extra
sets of chromosomes
, Triploidy --- correct answer ---when an organism has three copies of every
chromsome instead of two
Tetrapoloidy --- correct answer ---euploid has 92 chromosomes and fetus
usually does not survive
Huntington's disease --- correct answer ---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 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 --- correct answer ---XO chromosomal disorder,
monosomy of X-affects females
Short stature, webbed neck, undeveloped breasts but female genitalia,
usually sterile
Down syndrome --- correct answer ---Chromosomal disorder, trisomy 21
