Genetics and Epigenetics

Epigenetics is

• a change in the DNA sequence

• a change in the histone protein shape

• addition of methyl groups to DNA only

• addition of methyl groups to DNA and histone proteins

DNA methylation is

• adding CH₄ groups to DNA

• adding CH₃ groups to DNA phosphate groups

• adding CH₃ groups to pentose sugar in DNA

• adding CH₃ groups to DNA nucleotide bases

Tags

NGSS.HS-LS3-2

Epigenetic changes are said to be

• somatically heritable

• autosomally heritable

• x linked heritable

• y linked heritable

Proportionate heritability is

• Phenotype= genetics + environment

• Genetics = phenotype + environment

• environment + phenotype = genetics

• Genetics + phenotype = environment

Tags

NGSS.HS-LS4-3

NGSS.HS-LS4-4

A segment of DNA that codes for a trait

• gene

• centromere

• chromosome

• chromatid

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Gene expression is

• transcription then translation and building a protein

• translation then transcription and making carbohydrate

• transpiration then transcription and building proteins

• proteins making changes to DNA

Tags

NGSS.HS-LS1-1

Histone modification is

• histone methyltransferases join methyl groups to histone protein heads

• histone methyltransferases join methyl groups to histone protein tails

• DNA methyltransferases join methyl groups to DNA phosphate groups

• DNA methyltransferases join methyl groups to DNA hydrogen bonds

Tags

NGSS.HS-LS3-2

In a pedigree chart this symbol indicates

• identical male twins

• non-identical male twins

• identical female twins

• non-identical female twins

In a pedigree chart the symbol indicates

• identical male twins

• identical female twins

• non-identical male twins

• non-identical female twins

Tags

NGSS.HS-LS3-1