पुरुषमा X र Y दुवै क्रोमोजोम भए नापनि कसैको छोरा मात्रै वा छोरी मात्रै हुन्छन् । किन ? कारणसहित लेख्नुहोस् । Though males have both X and Y sex…
SEE Class 10 Science · 2082 · Solved Question with Answer
पुरुषमा X र Y दुवै क्रोमोजोम भए नापनि कसैको छोरा मात्रै वा छोरी मात्रै हुन्छन् । किन ? कारणसहित लेख्नुहोस् ।
Though males have both X and Y sex chromosomes, some of them have only sons and some have only daughters. Explain why?