1: Introduction to Genetics Flashcards
(16 cards)
fundamental unit of heredity
gene
unit of information that encodes a genetic characteristic
gene
multiple forms of a gene for a specific characteristic
allele
genetic information of an organism
genotype
trait, not inherited directly
phenotype
polymers of nucleotides. DNA and RNA
nucleic acids
sugar + phosphate + nitrogenous base
nucleotide
DNA + proteins
chromosomes
separation of chromosomes in division of somatic cells
mitosis
separation of chromosomes in division of sex cells to produce gametes
meiosis
specify the structure of proteins
genes
permanent changes in genetic information that can be passed from cell to cell of from parent to offspring
mutations
permanent changes that affect only a single gene
gene mutations
permanent changes that alter the number of structure of chromosomes and usually affect many genes
chromosome mutations
affected by many genes and environmental factors
traits
genetic change through genetic variation and changes in frequency
evolution