Balbiani discovered special type of chromosome from the salivary gland of chironomus larva which are recognized by the presence of ________?
Correct answer: C. Both bands and loops
- A. Bands
- B. Loops
- C. Both bands and loops
- D. All of the above
Explanation
Balbiani's giant polytene chromosomes in Chironomus larvae show a characteristic pattern of dark transverse bands and expanded regions or loops called puffs. These structures result from repeated DNA replication without cell division and active transcription at the puffs. Students may choose only bands because they are the most visible feature, but the special chromosomes are recognized by both bands and loops or puffs.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Chromosomes questions
A cistron is ________?
Tjio and Levan's contribution is very significant because they __________ ?
In humans no of tetrads formed during mitosis is __________?
How many nucleosomes are found in helical coil of 30 nm chromatin fibre ____?
Chromatid is _________ ?
A giant chromosome with a number of chromonemeta is ________ ?