14 Which of the following are characteristics of heterochrom

14. Which of the following are characteristics of heterochromatin?

Select one or more:

(a).hotspot for recombination

(b).a mechanism of dosage compensation

(c).contains many actively transcribed genes

(d).replicates early in S phase

(e).usually contains condensed chromatin

(f).contains few genes

Solution

(e).usually contains condensed chromatin

(f).contains few genes

Euchromatin contains most of the transcriptionally active genes, whereas heterochromatin contains few genes and is composed of repetitive non-coding DNA. Heterochromatin usually contains condensed chromatin and contains relatively few genes.