Rice and its grain relatives,maize,barley,and wheat,diverged from a common ancestor 50 million years ago.However,the chromosomes of these plants demonstrate extensive conserved arrangements of segments.This phenomenon is called
A)linkage disequilibrium.
B)single nucleotide polymorphisms.
C)contig.
D)synteny.
E)expressed sequence equilibrium.

Question

Quizplus · Accepted Answer

The phenomenon described in the question is called synteny, which refers to the conserved arrangement of segments of chromosomes among different species. Option A (linkage disequilibrium) refers to the non-random association of alleles at different loci, which is not directly related to the question. Option B (single nucleotide polymorphisms) refers to variations at a single nucleotide level, which may or may not be related to the question. Option C (contig) refers to a contiguous sequence of DNA, which is not directly relevant to the question. Option E (expressed sequence equilibrium) is not a recognized term in genetics or molecular biology.

Rice and Its Grain Relatives,maize,barley,and Wheat,diverged from a Common Ancestor