Structure Of Chromosome – II Structure of Chromosome – II 1 / 10 Thymine is complementary to Cytosine Guanine Adenine 2 / 10 Each centriole is surrounded by radiating rays known as aster chromatids centromere nucleoli 3 / 10 What is the primary difference between a chromatid and a chromosome? Chromatids are found in prokaryotes, while chromosomes are found in eukaryotes. A chromatid is one half of a duplicated chromosome, while a chromosome is a single, complete DNA molecule. Chromatids contain histones, while chromosomes do not. Chromatids are transcriptionally active, while chromosomes are not. 4 / 10 Which of the following best describes a nucleosome? A region of the chromosome where sister chromatids are attached The basic unit of DNA packaging, consisting of DNA wrapped around histone proteins The protective end of a chromosome A segment of DNA that codes for a specific protein 5 / 10 Which type of chromatin is highly condensed and usually transcriptionally inactive? Euchromatin Heterochromatin Centromeric chromatin Telomeric chromatin 6 / 10 What is the role of telomeres in chromosome structure? Initiating DNA replication Serving as attachment points for spindle fibers Protecting chromosome ends from degradation Facilitating chromatid cohesion 7 / 10 What term describes one of the two identical halves of a duplicated chromosome? Chromatin Chromosome Chromatid Centromere 8 / 10 Which of the following proteins forms the core around which DNA is wrapped in the nucleosome? Actin Tubulin Histone Keratin 9 / 10 Which type of chromatin is less condensed and typically associated with active gene transcription? Euchromatin Heterochromatin Centromeric chromatin Telomeric chromatin 10 / 10 What is the primary function of the centromere in a chromosome? To replicate DNA To protect chromosome ends To attach sister chromatids To serve as a site for ribosome assembly Your score isThe average score is 0% 0% Restart quiz
