A bivalent consists of (a) Two chromatids and one centromere (b) Two chromatids and two centromeres (c) Two chromatids and two centromeres
A bivalent consists of
(a) Two chromatids and one centromere
(b) Two chromatids and two centromeres
(c) Two chromatids and two centromeres
(d) Four chromatids and four centromeres
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Correct option (c) Two chromatids and two centromeres
Explanation :
Each pair of homologous chromosome carrying one maternal and one paternal chromosome of similar type is called bivalent. Each chromosome has two sister chromatids and a centromere. Thus. bivalent possesses four chromatids, two centromeres. This bivalent with four chromatids is called pachytene tetrad (quadrivalent).
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