Question

Which scenario breaks the law of segregation?
a gamete contains the father’s allele
the gametes produced each have 1 allele after meiosis II
a gamete produced has 2 of the same alleles after meiosis II
the gamete fertilized has the dominant trait

Answer 1

"A gamete produced has 2 of the same alleles after meiosis II."

Reason: Mendel's law of segregation says each gamete should receive only one allele for a gene. A gamete with two alleles (e.g., from nondisjunction) violates that rule.