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Fill in the table below concerning chromatin modification. Name of Enzyme Function Writer (W)or Eraser (E)?...

  1. Fill in the table below concerning chromatin modification.

Name of Enzyme

Function

Writer (W)or Eraser (E)?

Action leads to open (O) or closed (C) chromatin

Effect on transcription (+/-)

Adds acetyl groups to histones

HMT

HDAC

Removes methyl groups from histones

DMT

  1. A moth census on Wooded Island counted 100 black (BB) moths, 40 gray (Bb) and 60 white (bb) moths. What are the genotypic frequencies? What are the allelic frequencies? Is the population in Hardy-Weinberg equilibrium?   

Ill Rate High

Solutions

Expert Solution

Name of

The enzyme

 Function Writer or eraser

HMT ( Histone

aceytl transferase)

Add acetyl

groups to histone

Writer ( Histone acetyl transferase enzymes

modify histones by addition of acetyl group.)
HDAC ( Histone deacetyltransferase) removes methyl group from histone Eraser ( they might me associated with the repressor.)
DMT ( DNA methyltransferase) add methyl group to DNA molecule Eraser ( DNA methylation acts as a repressor)

2) Therefore the genotypic frequency of

BB = 0.5

bb = 0.0006

The allelic frequency of

B = 0.98

b =. 0.02

gladiator answered 2 years ago
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