Chromosome Structure and Abnormalities — NEET Biology
📚 Practice ConceptThe total number of chromosomes in a normal human cell is 46 (23 pairs). Out of these 22 pairs are autosomes and one pair of chromosomes are sex chromosome. Sometimes, though rarely, either an additional copy of a chromosome may be included in an individual or an
Which of the following statements regarding sex determination in humans is/are correct? S1: Human males are homogametic, producing only X-carrying sperms. S2: Females produce two types of ova, 50% carrying X chromosome and 50% carrying Y chromosome. S3: Fertilization of an ovum by a Y-chromosome carrying sperm results in a female offspring. S4: Autosomes are present in equal number in both males and females. S5: The sex of the child is genetically determined by the genetic makeup of the ovum.
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