Identical Twins, Identical Fates Case Study

What was the most likely cause of Shannon's schizophrenia?

• a lifefstyle choice that's the result of an epigentic change in her DNA

• a mutation in her DNA that's the result of bad lifestyle choice

• it's likely to have been passed on from her parents

• its either genetic or epigenetic

1. Each of our _______ consists of tightly coiled DNA.

• nucleotides

• amino acids

• proteins

• chromosomes

Tags

NGSS.HS-LS3-1

The protein DNA wraps around to form a nucleosome.

• Gene

• Chromosome

• Nucleus

• Histone

These chemical tags inactivate or silence a gene.

• acetyl groups

• methyl groups

• histones

• genes

Increases gene transcription

• methylation
• transcriptase
• helicase
• DNA acetylation

A chemical modification of DNA that does not affect the nucleotide sequence of a gene but makes that gene less likely to be expressed.

• methylation
• acetylation
• transcription
• translation