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NEET-XII-Biology

P1 year:2019

with Solutions - page 3
Qstn# 129 Prvs-QstnNext-Qstn
  • #129
    What map unit (Centimorgan) is adopted in the
    construction of genetic maps?
    (1) A unit of distance between two expressed
    genes representing 10% cross over.
    (2) A unit of distance between two expressed
    genes representing 100% cross over.
    (3) A unit of distance between genes on
    chromosomes, representing 1% cross
    over.
    (4) A unit of distance between genes on
    chromosomes, representing 50% cross
    over.
    digAnsr:   3
    Ans : ( 3 )
    Sol. 1 map unit represent 1 % cross over.
    Map unit is used to measure genetic distance.
    This genetic distance is based on average
    number of cross over frequency.