Genomes Flashcards
what is a sequence motif
sequences of nucleotides that indicate what type of function may be en coded in a. region of a genome
where are sequence motifs found
can be found in DNA or the RNA sequence inferred from DNA
what is a promoter
a sequence where RNA polymerase and associated proteins bind to the DNA to initiate transcription
what is an open reading frame
if transcribes and processed into mRNA, it would result in a set of codons for amino acids that does not contain a stop codon
among eukaryotes, there is no _____ between genome wise and organismal _____
among eukaryotes, there is no relationship between genome size and organismal complexity. The size f the genome is unrelated to the metabolic, developmental, and behavioural complexity of the organism
why is there no correlation between genome size and organismal complexity
C-Valule paradox: some genomes don’t completely code, others do
what is polyploidy
having more than two sets of chromosomes in a genome
what is a nucleioid
supercoils of DNA with multiple loops, bound together by proteins
what is a nucleosome
DNA wrapped around a group of histone prpteins
what are homologous chromosomes
pairs of chromosomes that match in size and appearance
describe viral genomes
usually small and compact with little to no repetitive DNA
what is a genome
a genome is the genetic material of a cell, Its sequence is the order of bases along the DNA or RNA
what us genome annotation
process by which the types and locations of the different types of sequences are identified
