Multiple Choice
What is the complex of DNA and histone proteins in eukaryotes called?
2
views
3. Extensions to Mendelian Inheritance
Overview of interacting Genes
Struggling with Genetics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following descriptions is NOT true of heterochromatin?
A
Heterochromatin stains more darkly with certain dyes compared to euchromatin.
B
Heterochromatin is more densely packed than euchromatin.
C
Heterochromatin is often found at centromeres and telomeres.
D
Heterochromatin is generally transcriptionally active.
Verified step by step guidance1
Step 1: Understand the definition of heterochromatin. Heterochromatin is a tightly packed form of DNA, which generally makes it less accessible for transcription.
Step 2: Review the characteristics of heterochromatin, such as its dense packing, location (often at centromeres and telomeres), and staining properties (it stains more darkly due to its compactness).
Step 3: Compare heterochromatin to euchromatin, which is less densely packed and generally transcriptionally active, meaning genes in euchromatin are more likely to be expressed.
Step 4: Identify the statement that contradicts the known properties of heterochromatin. Since heterochromatin is usually transcriptionally inactive, the statement claiming it is transcriptionally active is incorrect.
Step 5: Conclude that the description 'Heterochromatin is generally transcriptionally active' is NOT true of heterochromatin.
7:56mWatch next
Master Interacting Genes Overview with a bite sized video explanation from Kylia
Start learningRelated Videos
Related Practice
Overview of interacting Genes practice set
Problem sets built by lead tutorsExpert video explanations