कोशिका में गुणसूत्र (Chromosomes) कहाँ पाए जाते हैं?

उत्तर: (A) केन्द्रक (Nucleus) — Chromosomes are in the Nucleus. They carry genes (DNA). Human cells have 46 chromosomes (23 pairs). Sex chromosomes: XX (female), XY (male). During cell division, chromosomes condense and become visib...