a bacterial species is broken down What data in the table indicates that adenine pairs with thymine in a DNA molecule They are in equal amounts Complete the chart below to show the mRNA codons and amino acids coded for by the ID: 908167
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Slide1
The table below shows the number of individual molecules obtained when a DNA molecule from
a bacterial species is broken down.
What data in the table indicates that adenine pairs with thymine in a DNA molecule?
They are in equal amounts.
Slide2Slide3Slide4Complete the chart below to show the mRNA codons and amino acids coded for by theDNA base sequence. DNA base
sequence: T A C T T A T C A T A GmRNA codons _____ _____ _____ _____Amino acids _____ _____ _____ _____
Slide5Complete the chart below to show the mRNA codons and amino acids coded for by theDNA base sequence. DNA base
sequence: T A C T T A T C A T A GmRNA codons _____ _____ _____ _____Amino acids _____ _____ _____ _____
AUG|AAU|AGU|AUC
Slide6Complete the chart below to show the mRNA codons and amino acids coded for by theDNA base sequence. DNA base
sequence: T A C T T A T C A T A GmRNA codons _____ _____ _____ _____Amino acids _____ _____ _____ _____
AUG|AAU|AGU|AUC
MET|ASN |SER | ILE
Slide7Notice how the codon AAU codes for
ASN.
What would happen if a DNA mutation changed the RNA codon to
AAC
?
Nothing changes, because AAC also codes for
ASN
.
Mutations
that DO NOT change amino acid sequences are called
SILENT MUTATIONS
.
Slide8DNA holds the codeThe code determines the amino acid sequence.
The sequence determines the protein’s shape.The shape determines the function.
What if a code change DOES change the amino acid sequence?
Slide9DNA mutation Change of RNA
Different amino acids Altered protein or enzyme
Slide10Mutations that change enzymes or proteins are usually bad and often lethal tay
sachs vid@ 15 min
Slide11Which mutation in a fruit fly could be passed on to
its offspring?(1) a mutation in a cell of an eye that
changes the color of the eye
(2) a mutation in a leg cell that causes the leg
to be
shorter
(3) a mutation in a sperm cell that changes
the
shape
of the
wing
(4) a mutation in a cell of the digestive tract
that
produces
a different enzyme