ey occur in germ cells. Can lead to syndromes like Down syndrome (trisomy 21). Pros: Contribute to genetic diversity. Provide insights into gene function and evolution. Cons: Often associated with develo
esses. Common Features of Karyotyping Answer Keys Correct chromosome number and sex determination (e.g., 46, XX or 47, XY+21). Identification of structural abnormalities such as deletions or translocations. Standardized notation for chromosomal anomalies. Visual references or diagrams matching spec
ndisjunction during meiosis? Answer: Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly. It can lead to abnormal chromosome numbers in gametes, resulting in disorders such as Down
urpose is to ensure genetic diversity and maintain chromosome number across generations. Stages of Meiosis Meiosis consists of two consecutive divisions: meiosis I and meiosis II, each with prophase, metaphase, anaphas
molecule contains one original strand and one newly synthesized strand, conserving half of the parental DNA in each copy. Q2: What role do enzymes play in DNA replication? A: Enzymes facilitate various steps, including unwinding DNA (helicase), synthesizing primers (primase), extending new s
which result from abnormal chromosome numbers or structures. How do chromosomes replicate during human cell division? Chromosomes replicate during the S phase of the cell cycle, producing identical sister chromatids that ensure each daughter cell receives a
