Question

Choose the odd one out w.r.t ploidy level
1)egg
2)antipodals
3)synergids
4)secondary nucleus ​

Answer 1

The odd one out ploidy level is Option 4 Secondary nucleus

Explaination: Secondary nucleus has 2 chromosomes.

Answer 2

The odd one out w.r.t ploidy level is 4)secondary nucleus.

• Egg, antipodals, and synergids are part of the female gametophyte which is the embryo sac.
• Eggs, antipodals and synergids are haploid because they are formed by equational division mitosis in the megaspore mother cell.
• So, haploid megaspore mother cell results in haploid eggs, antipodals and synergids.
• The secondary nucleus is diploid because it is formed by the fusion of haploid polar nuclei.