MHT CET 202622 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 22 April
- Shift
- Evening Shift
- Subject
- Biology
- Chapter
- Sexual Reproduction in Flowering Plants
MHT CET 2026 · 22 April · Evening Shift · Biology · Sexual Reproduction in Flowering Plants
Which one of the following is INCORRECT about double fertilization...
Which one of the following is INCORRECT about double fertilization in angiosperms?
Options
- ASyngamy is the fusion of haploid male and female gametes to form a diploid zygote.
- BTriple fusion involves the fusion of a haploid male gamete with a diploid secondary nucleus.
- CBoth syngamy and triple fusion are generative fertilization.
- DBoth the male gametes participate in double fertilization.
Correct answer
C. Both syngamy and triple fusion are generative fertilization.
Step-by-step solution
Double fertilization in angiosperms involves two types of fusions: syngamy and triple fusion.
Syngamy is the fusion of one haploid male gamete with the haploid egg cell to form a diploid zygote. This process is known as generative fertilization.
Triple fusion is the fusion of the second haploid male gamete with the diploid secondary nucleus (formed by the fusion of two polar nuclei) to form a triploid primary endosperm nucleus (PEN). This process is known as vegetative fertilization.
Since triple fusion is vegetative fertilization and not generative fertilization, the statement claiming both are generative fertilization is incorrect.
Both male gametes participate in these two fusions, making the fourth statement correct.
Answer: Both syngamy and triple fusion are generative fertilization.
Syngamy is the fusion of one haploid male gamete with the haploid egg cell to form a diploid zygote. This process is known as generative fertilization.
Triple fusion is the fusion of the second haploid male gamete with the diploid secondary nucleus (formed by the fusion of two polar nuclei) to form a triploid primary endosperm nucleus (PEN). This process is known as vegetative fertilization.
Since triple fusion is vegetative fertilization and not generative fertilization, the statement claiming both are generative fertilization is incorrect.
Both male gametes participate in these two fusions, making the fourth statement correct.
Answer: Both syngamy and triple fusion are generative fertilization.