Question

Fusion between dissimilar gametes is

• A. Autogamy
• B. Isogamy
• C. Allogamy
• D. Dichogamy

Answer 1

Answer: (C)

Allogamy

• Autogamy is the fusion of 2 different types of gametes that are from the same individual. Though, genetically they are similar as they're from the same individual.
• Isogamy is the fusion of gametes that are similar.
  
• Allogamy is the fusion of two different types of gametes between two different individuals. This term is commonly used for plants. These gametes are dissimilar genetically too.
• Dichogamy is the production of male and female reproductive elements at different times by a bisexual organism in order to ensure cross-fertilization.
  

So, the correct option is 'Allogamy'.