Chromosomes of amphibian oocytes having loops suggestive of a lampbrush. Large chromosomes found in amphibian eggs, with lateral DNA loops, extending from chromomeres, producing a brushlike appearance under the microscope.
Example: Lampbrush Chromosomes The meiotic cells (oocytes) of some amphibians (frogs, toads, salamanders) have chromosomes that appear bristled. The bristles are loops of unwound DNA with many RNA polymerase and mRNA molecules.
Lampbrush chromosome (← links) Brdu-banding (← links) Azure b (← links) Templates (← links) Protein synthesis (← links) Southern blotting (← links) Chromosomal rna (← links) Replicase (← links) Replication (← links) ...
See also: Chromosome, Chromosomes, Human, Microscope, Polymerase
 
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