If alleles L, M, and N are on the maternal
chromosome and l, m, and n are on the paternal
chromosome, the only way that a gamete from a
heterozygote will produce a gamete with alleles l, m,
and N is through
a. nondisjunction.
b. the laws of segregation.
c. the law of independent assortment.
d. crossing over.
e. chromosome aberration.
Answer: d
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