dna Flashcards
transcription
what enzyme breaks H bonds between complementary base pairs?🐳
DNA helicase
transcription
after template DNA strands are formed what happens?⭐️
what does this form?⭐️
RNA nucleotides join to the complementary base sequences on the template DNA.
RNA polymerase joins RNA nucleotides together by phosphodiester bonds.
forms pre-mRNA
what is splicing?💓
introns are removed from pre-mRNA to make mRNA
what’s a gene?🧬
a small sequence of DNA bases
what’s an allele?💕
different forms of the same gene
what’s a loci?💐
where a gene is located on a chromosome
what is degenerate code?💞
when multiple triplets code for one amino acid
what is a universal code?🩵
each triplet codes for the same amino acid in every organism
what’s an overlapping code?💝
when a nucleotide sequence codes for 2 amino acid sequences
RNA structure?💐🌷
-ribose sugar
-uracil
-found in cytoplasm
-short
-single stranded
DNA structure?💓💓
-nucleotides joined by phosphodiester bonds
-deoxyribose sugar
-sugar phosphate backbone
-2 DNA strands held by H bonds
describe the process of dna replication💖
dna helicase breaks the h bonds between 2 strands of dna
it unwinds the double helix making 2 single strands
free nucleotides bind to comp bases
dna polymerase joins them together forming phosphodiester bonds
forms 2 identical strands
