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  4. Observe the following image of a chromosome. It has two dominant genes A and B located as depicted. What will be the correct gene placement at position i and ii? <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/b-m9yqi3ujfbreo3en.jpg />

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Q. Observe the following image of a chromosome. It has two dominant genes A and B located as depicted. What will be the correct gene placement at position i and ii?
Question

NTA AbhyasNTA Abhyas 2022

Solution:

The given diagram depicts one chromosome with two chromatids. These two chromatids are called sister chromatids. Sister chromatids are identical in their alleles. Homologous chromosomes may have different alleles for the same gene.