Multiple choice

The alternate form of the same gene is known as

  1. allele

  2. factors

  3. species

  4. units

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A Correct answer
Explanation

Alleles are alternative forms of the same gene that occupy the same position on a chromosome and determine contrasting traits (like tall vs dwarf in pea plants). Factors was Mendel's term for genes before chromosomes were discovered. Species refers to a group of organisms, and units is too generic.