Question
Synteny refers to
The correct answer is
local conservation of gene order
Synteny Explained: Gene Order Conservation
Synteny refers to the preservation or conservation of gene order across different species, typically relative to their most recent common ancestor.
Analyzing the Options
- Option 1 (gene duplication from a common ancestor): While gene duplication is related to genome evolution, it doesn't specifically define synteny.
- Option 2 (a tree representation of related sequences): This describes phylogenetic trees used in evolutionary biology, not synteny itself.
- Option 3 (the extent of similarity between two sequences): Sequence similarity measures how alike DNA or protein sequences are, which is a broader concept than synteny.
- Option 4 (local conservation of gene order): This accurately describes synteny, focusing on the conserved arrangement of genes in the same order across related species or genomes.
Conclusion
Based on the definition, synteny specifically relates to the local conservation of gene order between genomes.
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Important Questions from Molecular Structure of Genes and Chromosomes
- All pseudogenes DO NOT code for a __________.
- C-value paradox refers to
- DNA sample collected from an unidentified bacterial species (Y) contains 13% of adenine. The G+C content (in percentage) of Y is ________
The contour length of a B-DNA molecule that encodes a bacterial protein of 33 kDa is _________ nm.
Consider the average molecular weight of an amino acid as 110 Da and helix rise per base pair for B-DNA as 0.34 nm.
(Round off to the nearest integer)
- Which of the following methods is/are used for identifying histone modifications?
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