4.Principles of Inheritance and Variation
medium

કસોટી સંકરણમાં શું સંકળાયેલ છે?

A

બે જીનોટાઈપનું પ્રભાવી લક્ષણ સાથે સંકરણ

B

સંકરણ બે $F_1$ સંકર જાત વચ્ચે

C

બે જીનોટાઈપને પ્રચ્છન્ન લક્ષણ સાથે સંકરણ

D

$F_1$ સંકર જાતને બેવડા પ્રચ્છન્ન જીનોટાઈપ સાથે સંકરણ

(AIPMT-2006)

Solution

(d) : Test cross is performed to determine the genotype of $F_2$ plant. In a typical test cross an organism showing dominant phenotype and whose genotype is to bedetermined is crossed with one that is homozygous recessive for the allele being investigated, instead of self­crossing. The progenies of such a cross can easily be analysed to predict the genotype of the test organism. Given ahead is an illustration of test cross:

Standard 12
Biology

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