difference between lampbrush chromosome and salivary gland chromosome
Answers
Answer:
The main difference between polytene and lampbrush chromosome is that polytene chromosomes occur in the salivary glands and other tissues of insects whereas lampbrush chromosomes occur in the oocytes of vertebrates except for mammals and some invertebrates. Furthermore, polytene chromosomes are visible during the interphase and prophase of mitosis while lampbrush chromosomes are clearly visible during the diplotene stage of mitosis. Additionally, polytene chromosomes contain many longitudinal strands called chromomenta while lampbrush chromosomes contain a series of large, laterally extended loops.
Polytene and lampbrush chromosome are two types of giant chromosomes which decondense during the interphase. Generally, they actively undergo transcription.