Intro to human genome Flashcards
how do strands of dna pair up
antiparallel fashion
what direction is dna replicated
5>3 direction
bases
ACTG
bases in RNA
ACGU
backbone in DNA
2-deoxyribose
backbone in RNA
ribose
what is information in dna held in
sequence of bases
what are the sequence of bases held in
sugar phosphate backbone
what does a DNA stran associate with
proteins and is wound into a structure called a chromosome
when does dna replication occur
s phase
products of mitosis
two identical diploid daughter cells
what occurs in meiosis
one idploid parent cell becomes 4 haploid daughter cells
difference in RNA
single stranded
ribose backbone
uracil
how does dna become mrna thwn a protein
transcription and splicing
what determines the amount of protein porduced
rate of transcription
rate of splicing
half life of mrna
rate of processing of polyp
transcription pathway
na > pre mrna > mrna.. translated to protein
polymorphism
any variation in the human genome that has a population frequency greater than 1% or
any variation in human genome that does not cause a disease in its own right but may predispose to a common disease
what happens when pre mrna is spliced to mrna
removal of introns