<prompt> Chromosomal instability syndrome is -Fanconi syndromeAtaxia TelangectasiaBloom syndromeAll of the above  <response>: Ans. is d i.e., All of the above o Chromosomal instability syndromes are a group of disorders characterized by chromosomal instability and breakage,o There are:-1. Xeroderma pigmentosa2. Bloom syndrome3. Fanconi syndrome4. Ataxia telangectasia 