Nucleoplasmic veil is made up of LEM-3 lamins.

Nucleus or nucleus-like structures like nucleoid are required to divide and produce daughter cells. Cells incapable to produce daughter cells lack nucleus

Progeria is caused by mutation in A/C genes which causes the appearance of premature aging in its sufferers.

Microscopist Antonie van Leeuwenhoek (1632–1723), observed the nucleus in the red blood cells of salmon.

Anti-nuclear antibodies (ANA) have been observed in Systemic lupus erythematosus, which is an autoimmune disease.

This is the correct option. Transcription of rDNA takes place either in FC region or at FC-DFC boundary.

Nucleus was the first organelle to be discovered. It was first noticed by Antonie van Leeuwenhoek.

Translation of proteins occurs outside the nucleus in the cytoplasm.

Assembled ribosomal units are the largest sub-units that can pass through nuclear pores.

Nuclear pores provide aqueous channels through the envelope. These are composed of multiple proteins called nucleoproteins.

During telophase, when the two daughter nuclei are formed, there is no RNA Pol II transcription. So, the protein components like paraspeckles instead form a perinucleolar cap. Thus, they are absent in telophase.

Promyelocytic leukemia bodies are found in nucleoplasm. These are non-membrane-delineated bodies. They are involved in assemblage of nuclear bodies.

Small intranuclear rods are seen in nemaline myopathy; nemaline myopathy is an inherited myopathy, a group of diseases that causes problems with the tone and contraction of skeletal muscles.

Cajal bodies are involved in a number of roles in RNA processing like snRNA maturation and histone mRNA modification.

Perichromatin fibrils are located next to the transcriptionally active chromatin and is hypothesised to be the site of active pre-mRNA processing.