A testcross consists of

a. a cross of two pure-breeding forms to find out which form of a gene is dominant.
b. a cross between two unknown forms to determine their genotypes.
c. a cross between an offspring and its parent.
d. a cross of an F1 hybrid to an individual that is homozygous recessive.
e. a cross of two F2 individuals to produce an F3 generation.


D

Biology & Microbiology

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