Question

5.
If the arrangement of three genes in homologous chromosome in an individual is A +C/+
B +, the genes A and C are said to be in
(A) Trans arrangement
(C) Repulsion phase
(B) Cis arrangement
(D) Different-chromosomes
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Answer 1

ANSWER

ANSWERA.cis – arrangement - two dominant alleles linked on one chromosome is called cis arrangement of genes.

ANSWERA.cis – arrangement - two dominant alleles linked on one chromosome is called cis arrangement of genes.B.Trans arrangement – two dominant alleles present on different chromosomes is called trans arrangement of genes

ANSWERA.cis – arrangement - two dominant alleles linked on one chromosome is called cis arrangement of genes.B.Trans arrangement – two dominant alleles present on different chromosomes is called trans arrangement of genesC.Partly cis partly trans – dominant alleles partly present on same chromosomes and partly present on different chromosomes.

ANSWERA.cis – arrangement - two dominant alleles linked on one chromosome is called cis arrangement of genes.B.Trans arrangement – two dominant alleles present on different chromosomes is called trans arrangement of genesC.Partly cis partly trans – dominant alleles partly present on same chromosomes and partly present on different chromosomes.So, the correct option is ‘cis arrangement’.