Human Karyotyping Answer Key
Arrange human chromosomes into a karyotype and identify chromosomal abnormalities.
Looking for Human Karyotyping answers? This complete answer key provides verified solutions for all student exploration activities and assessment questions in the ExploreLearning Human Karyotyping Gizmo.
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Prior Knowledge Questions
Q1.What is a karyotype?
A karyotype is an organized image of all chromosomes in a cell, arranged in homologous pairs by size.
Q2.How many pairs of chromosomes do humans have?
Humans have 23 pairs of chromosomes (46 total): 22 pairs of autosomes and 1 pair of sex chromosomes.
Q3.What determines biological sex in humans?
The sex chromosomes determine biological sex: XX = female, XY = male.
Activity A – Identifying Abnormalities
Q4.What is Down syndrome caused by?
Q5.What is nondisjunction?
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