DNA and RNA sturcture
this carries genetic information in the cells
DNA
what the process of copying DNA called
what is DNA replication
what type of molecule is an enzyme
protein
what is a mutation
a change in DNA sequence
what type of cells are produced by meiosis
gametes
the building blocks of DNA and RNA
what is nucleotides
this enzyme unzips the DNA strand
what is helicase
what is the substance an enzyme acts on
substrate
what type of mutation involves a single base change
point mutation
how many daugheter cells are produced in meiosis
4
sugar found in dna but not rna
deoxyribose
the enzyme that adds new nucleotides to the growing strand
what is DNA polymerase
the region on a enzyme where the subtrate binds
active site
what mutation adds extra bases into dna
instertion
are the cells produced during meiosis identical or different
differnet
what nitrogen base is found in RNA instead of thymine
uracil
the rule explains how bases pair during replication
what is base-pairing rule
what happens to an enzyme when it is denatured
loses its shape and function
what mutation removes bases from dna
deletion
what process during meiosis increase genetic variation by exchanging dna
crossing over
the shape of DNA js called
double helix
semi-conservative replication
what environmental factors most affect enzyme activity
temperature and pH
what type of mutations shifts the reading rame of codons
frameshift mutation
what is the chromosome number of cells after meiosis called
haploid