NSG 530 EXAM 1 QUESTIONS AND
CORRECT ANSWERS LATEST
UPDATE 2025/2026 GRADED A+.
1/7
, 1. Interphase CORRECT ANSWERS cell feeds, metabolizes and grows while replicating DNA in prepara- tion for
mitosis
2. Prophase CORRECT ANSWERS first appearance of chromosomes (will be 92)
3. Metaphase CORRECT ANSWERS Centrioles pull chromosomes to opposite sides of cell (chromatid) - 46 each
side
4. Anaphase CORRECT ANSWERS Centromeres split and sister chromatids are pulled apart
5. Telophase CORRECT ANSWERS New nuclear membrane formed around each group of 46 chromo- somes
*When it goes right, euploid cells are produced*
6. Nondisjunction CORRECT ANSWERS Error in meiosis in which homologous chromosomes fail to
separate.
7. Polyploidy CORRECT ANSWERS condition in which an organism has extra sets of chromosomes
8. Triploidy CORRECT ANSWERS when an organism has three copies of every chromsome instead of two
9. Tetrapoloidy CORRECT ANSWERS euploid has 92 chromosomes and fetus usually does not survive
10. 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
11. 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)
12. Turner syndrome CORRECT ANSWERS XO chromosomal disorder, monosomy of X-affects females Short
stature, webbed neck, undeveloped breasts but female genitalia, usually sterile
13. Down syndrome CORRECT ANSWERS Chromosomal disorder, trisomy
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CORRECT ANSWERS LATEST
UPDATE 2025/2026 GRADED A+.
1/7
, 1. Interphase CORRECT ANSWERS cell feeds, metabolizes and grows while replicating DNA in prepara- tion for
mitosis
2. Prophase CORRECT ANSWERS first appearance of chromosomes (will be 92)
3. Metaphase CORRECT ANSWERS Centrioles pull chromosomes to opposite sides of cell (chromatid) - 46 each
side
4. Anaphase CORRECT ANSWERS Centromeres split and sister chromatids are pulled apart
5. Telophase CORRECT ANSWERS New nuclear membrane formed around each group of 46 chromo- somes
*When it goes right, euploid cells are produced*
6. Nondisjunction CORRECT ANSWERS Error in meiosis in which homologous chromosomes fail to
separate.
7. Polyploidy CORRECT ANSWERS condition in which an organism has extra sets of chromosomes
8. Triploidy CORRECT ANSWERS when an organism has three copies of every chromsome instead of two
9. Tetrapoloidy CORRECT ANSWERS euploid has 92 chromosomes and fetus usually does not survive
10. 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
11. 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)
12. Turner syndrome CORRECT ANSWERS XO chromosomal disorder, monosomy of X-affects females Short
stature, webbed neck, undeveloped breasts but female genitalia, usually sterile
13. Down syndrome CORRECT ANSWERS Chromosomal disorder, trisomy
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