Why do regions overlap?

Why do regions overlap?

Routes may overlap because they share base geometry. Regions, likewise, lie above the polygon topology; use shared geometry; and may, therefore, overlap.

What does overlapping mean in DNA?

Overlapping genes (OLGs) are two adjacent DNA segments that are partially or entirely overlapped with each other through a shared genomic location. These genes are present in the viral, prokaryotic, and eukaryotic genomes.

What is overlapping regions in human genome project?

Overlapping genes are defined as chromosomal locations of two adjacent gene loci overlapping partially or entirely with each other by sharing a common genomic region4.

Why are overlapping genes important?

Overlap is thought to be important as: (1) a means of compressing a maximum amount of information into short sequences of structural genes; and (2) as a mechanism for regulating gene expression through translational coupling of functionally related polypeptides.

What are overlapping sequences?

1 INTRODUCTION. Overlapping gene coding sequences (CDSs) occur where a nucleotide sequence codes for two different amino acid sequences in different read-frames. There are five possible read-frames for a ‘secondary’ open reading frame (ORF) relative to a ‘primary’ ORF that we label −3, −2, −1, +1 and +2 (Fig. 1).

What is an example of an overlapping region?

Regions of the world can and do overlap such as the areas of Southeast Asia and Asia. Regions also have transitional boundaries like between North Africa and Sub-Saharan Africa. Geographers will also use two different terms to describe the same area; the Middle East and Southwest Asia, for example.

What is overlapping gene with example?

An example with three human overlapping genes— MUTYH, TOE1, and TESK2—is presented in Figure 1. The gene TOE1 has overlapping exons with MUTYH at the 5′-end and with TESK2 at the 3′-end. In the human genome we also found a segment with four exon overlapping genes: LOC338549, IDI2, HT009, and IDI1.

What is overlapping gene give an example?

What is a geographic example of an overlapping region?

Sometimes regions will “overlap”. For example countries such as Armenia and Azerbaijan can be considered as being in Central Asia whereas others may consider it in the Middle East. the ease of reaching one location from another.

What does vernacular mean in geography?

the sense of place
Vernacular geography is the sense of place that is revealed in ordinary people’s language. When people refer to geographical regions in a vernacular form they are commonly referred to as imprecise regions.

What countries overlap in more than one region?

Turkey and Russia are the two countries in the world which overlap two continents, Europe and Asia. In Turkey, from Istanbul to the north is on the continent of Europe while the rest of the country lies in Asia.

Which of the following organism have overlapping genes?

Overlapping genes are relatively common in DNA and RNA viruses (5-9). While several examples exist in bacterial and eukaryotic genomes, overlapping genes appear to be relatively rare in non-viral organisms and few reports have described overlapping genes in mammalian genomes (10-12).

What does the overlapping region mean in a Venn diagram?

For instance, in a two-set Venn diagram, one circle may represent the group of all wooden objects, while another circle may represent the set of all tables. The overlapping region or intersection would then represent the set of all wooden tables.

Which is an example of an overlapping site?

“Overlapping” implies that the sites involved are contiguous (next to each other). While numerically consecutive subcategories are frequently anatomically contiguous, this is not invariably so (for example bladder, C67).

Can a gene pair that is overlapping be identified?

Some de novo genes originating in this way may not remain overlapping, but subfunctionalize following gene duplication, contributing to the prevalence of orphan genes. Which member of an overlapping gene pair is younger can be identified bioinformatically either by a more restricted phylogenetic distribution, or by less optimized codon usage.

Why are there so many overlaps in the bacterial genome?

Most studies of overlap in bacterial genomes find evidence that overlap serves a function in gene regulation, permitting the overlapped genes to be transcriptionally and translationally co-regulated. In prokaryotic genomes, unidirectional overlaps are most common, possibly due to the tendency of adjacent prokaryotic genes to share orientation.