Chromosomal Landmarks Quiz

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Where are the nucleolar organizer regions (NORs) located in humans?

Short arms of chromosomes 13, 14, 15, 21, and 22

What is the composition of each unit in the nucleolar organizer regions (NORs) in eukaryotes?

Three genes coding for 18S, 5.8S, and 28S ribosomal RNA

Where are the 5S rDNA genes found in higher eukaryotes?

In clusters in regions distinct from the major unit rDNA repeats

What type of chromosomal landmarks are nucleolar organizer regions (NORs)?

Chromosomal landmarks consisting of tandemly repeated sequences of ribosomal genes

Which chromosomes have the NORs in humans?

13, 14, 15, 21, and 22

মানুষের কোন ক্রোমোসোমে নিউক্লিওলার অর্গানাইজার রিজন (NORs) অবস্থিত?

ক্রোমোসোম 13

নিউক্লিওলার অর্গানাইজার রিজন (NORs) এর কি বিশেষ উদ্দেশ্য আছে?

Ribosomal RNA synthesis

উচ্চ ইউকারিওটে কোন অঞ্চলে 5S rDNA জিন গুলি পাওয়া যায়?

নিউক্লিওলার অর্গানাইজার রিজন (NORs)

18S, 5.8S, 28S rRNA-র coding genes-এর প্রতিটি unit-ের composition হ'ল:

$3$ genes

POLYTENE CHROMOSOME-র কি বৈশিষ্ট্য?

Multiple copies of the same chromosome attached together

Test your knowledge on the chromosomal landmarks known as nucleolar organizer regions (NORs) and their tandemly repeated ribosomal gene sequences. Learn about the specific locations of NORs in human chromosomes and the arrangement of 5S rDNA genes in higher eukaryotes.

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