Terminology Flashcards
lymphocytes
type of white blood cell
heritability
contribution of genetic differences to trait differences
somatic mutations
alternations in DNA sequeces in somatic cells after fertilization
chromatin
A highly organized condensed structure made up of DNA, RNA, and proteins that forms the chromosomes in the nucleus of a cell.
epigenome
- multitude of chemical compounds that can tell the genome what to do.
- chemical compounds and proteins that can attach to DNA and direct such actions as turning genes on or off, controlling the production of proteins in particular cells.
gene
segment of DNA
gene expression
- process where a gene is used to synthesize a product (protein, ribosomal RNA, tRNA, small nuclear RNA)
knock-out
knocking out a gene => study effect on cell to figure what the function of the gene was
somatic cell
soma (Greek: body); are diploid
Include bone, muscle, and nerve cells
Diploid
contain two sets of chromosomes
genome
the complete set of genetic information in an organism
nucleotide
- What: molecules that make up nucleic acids
- made of 3 main components: Phosphate, sugar, and nitrogenous base
- SUGAR: 5 carbon sugar
- also carry adenosine triphosphate
nucleic acid
- biopolymers (polymer: repeated units of monomers) made up of nucleotides (monomers)
- hold genetic information and carrry other functions
- DNA and RNA
- nucleotide chains
Primary, canonical, fundamental units of genetic code: 5 nucleobases that make up nucleotides
A adenine
G guanine
U uracil
T thymine
C cytosine
DNA nitrogenous base pairings
A - T
C - G