Which employs a “closed” chromatin configuration? A) Mammal X-inactivation B) Drosophila dosage compensation 31
Added by Mark S.
Step 1
Chromatin can exist in two main forms: "open" (euchromatin) which is accessible for transcription, and "closed" (heterochromatin) which is not accessible for transcription. Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 62 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
What is thought to maintain X chromosome inactivation? A Option A: both repressive histone modifications and DNA methylation B Option B: RNA inactivation C Option C: localized DNA denaturation D Option D: DNA methylation E Option E: repressive histone modifications
Madhur L.
In Drosophila, dosage compensation is established by increasing transcription of X-linked genes in males. What type of epigenetic regulation would you examine between males and females in Drosophila? 1 Methylation of DNA 2 Methylation of histone tails 3 Acetylation of histone tails 4 All of the above
Sri K.
Dosage compensation is necessary because a. some regions of the genome contain more genes than others. b. genes near heterochromatin tend to be silenced. c. enhancers can activate transcription whether they are upstream or downstream of a gene. d. genes on the $X$ chromosome have twice as many copies in females as in males.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD