In humans, the first polar body formed during oogenesis has
(i) 46 chromosomes
(ii) 23 chromosomes
(iii) 46 chromatids
(iv). 23 chromatids

In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is/are : (i) large chromosome (ii) small chromosome (iii) Y chromosome (iv) X chromosome

In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is/are : (i) large chromosome (ii) small chromosome (iii) Y chromosome (iv) X chromosome

Four different steps that occur during meiosis are given in the following list. (i) Complete separation of chromatids (ii) Pairing of homologous chromosomes (iii) Lining up of paired chromosomes on equator (iv) Crossing over between chromatids Select the correct sequential arrangement of the steps.

Four different steps that occur during meiosis are given in the following list. (i) Complete separation of chromatids (ii) Pairing of homologous chromosomes (iii) Lining up of paired chromosomes on equator (iv) Crossing over between chromatids Select the correct sequential arrangement of the steps.

Four different steps that occur during meiosis are given in the following list. (i) Complete separation of chromatids (ii) Pairing of homologous chromosomes (iii) Lining up of paired chromosomes on equator (iv) Crossing over between chromatids Select the correct sequential arrangement of the steps.

During anaphase-I of meiosis (A) Homologous chromosomes separate (B) Non-homologous autosomes separate (C) Sister chromatids separate (D) Non-sister chromatids separate