Question

At certain places, the nuclear envelope is interrupted by presence of nuclear pores which are enclosed by circular structures called as-

• A. Annuli
• B. Nucleolus
• C. Lamins
• D. Perinuclear space

Answer 1

The correct option is A Annuli

At certain places, the nuclear envelope is interrupted by presence of nuclear pores which are enclosed by circular structures called as annuli.
The nuclear pores are octagonal in shape and have a diameter of 600 angstroms. These are enclosed by circular structure known as annuli.
So, the correct answer is- annuli.