jhdhfhshfhjhfsh jhdhfhshfhjhfsh 22-05-2017 Biology contestada A gene which is expressed in a heterozygous individual is... A) dominant. B) recessive. C) homozygous. D) centromere. 22. Which of the following symbols represents homozygous? A) DD B) Dd C) dd D) DD and dd 23. Which of the following symbols represents a hybrid? A) FF B) ff C) Ff D) FF and ff