Aleurone layer is the layer formed by the endospermic tissue in the members of family Graminae eg. wheat, rice, maize etc. Obviously it will be a triploid tissue. So if synergids have 8 no. of chromosomes which are haploid than aleurone- layer must have 24 chromosomes.

Correct Option: A

Aleurone layer is the layer formed by the endospermic tissue in the members of family Graminae eg. wheat, rice, maize etc. Obviously it will be a triploid tissue. So if synergids have 8 no. of chromosomes which are haploid than aleurone- layer must have 24 chromosomes.

Generative cell which is a cell of the male gametophyte or pollen grain in seed plants that divides to give rise directly or indirectly two sperms.

Correct Option: A

Generative cell which is a cell of the male gametophyte or pollen grain in seed plants that divides to give rise directly or indirectly two sperms.

Egg nucleus and secondary nucleus has haploid number of chromosomes. While all other plant structures have diploid number of chromosomes.

Correct Option: D

Egg nucleus and secondary nucleus has haploid number of chromosomes. While all other plant structures have diploid number of chromosomes.

In a dicot plant general arrangement of nuclei in the embryosac is that 3 nuclei in 3 cells of egg apparatus (one egg cell & 2 synergids) at micropylar end and 2 polar nuclei in almost middle region and 3 nuclei in the form of antipodals at the distal end from micropyle, towards nucellus. So total nuclei 3 + 2 + 3.

Correct Option: A

In a dicot plant general arrangement of nuclei in the embryosac is that 3 nuclei in 3 cells of egg apparatus (one egg cell & 2 synergids) at micropylar end and 2 polar nuclei in almost middle region and 3 nuclei in the form of antipodals at the distal end from micropyle, towards nucellus. So total nuclei 3 + 2 + 3.

MMC microspore mother cell is surrounded by a callose wall inner to the cell wall.

Correct Option: D

MMC microspore mother cell is surrounded by a callose wall inner to the cell wall.