Two organisms that are true-breeding for a certain genetic characteristic are mated and their of...

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Two organisms that are true-breeding for a certain genetic characteristic are mated and their offspring were analysed. Which of the following statements about this situation is correct?
(a) Both parents are homozygotes.
(b) The offspring are either all homozygotes or all heterozygotes.
(c) The offspring represent the \( \mathrm{F}_{1} \) generation and the gametes produced by the offspring will carry only one allele for this gene.
(d) All of the above
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