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In a testcross involving "F"(1) dihybrid...

In a testcross involving `"F"_(1)` dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates:

A

(a) Both of the characters are controlled by more than-one gene

B

(b) The two genes are located on two different chromosomes.

C

(c) Chromosomes failed to separate during meiosis

D

(d) The two genes are linked and present on the same chromosome

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Knowledge Check

  • In fruits flies, long wing is dominant to vestigial wing. When heterozygous long-winged flies were crossed with vestigial-winged flies, 192 offsprings were produced. If an exact Mendelian ratio had been obtained, then the number of each phenotype would have been

    A
    `{:("Long-winged Vestigial-winged"),(" 64 128"):}`
    B
    `{:("Long-winged Vestigial-winged"),(" 96 96"):}`
    C
    `{:("Long-winged Vestigial-winged"),(" 128 64"):}`
    D
    `{:("Long-winged Vestigial-winged"),(" 192 0"):}`

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