12 – ½ more school days…
11/30/2011
Please take a study
guide off the front desk.
TEST TOMORROW!
If a mutation occurs in a cell,
what type of cell must it be for it
to be passed to the offspring?
Sex cell (gametes = egg and sperm)
What process does
this diagram
represent?
Protein synthesis
Which molecule is
found in the box
below?
tRNA
What part of this
diagram
represents
mRNA?
Part 2
In which part is
DNA unwinding?
Part 1
What is taking
place at Part 2?
Transcription
In which part is
translation occurring?
Part 3
What is made in
Part 4?
proteins
What is the purpose of DNA in
the process of protein synthesis?
Gives instructions
(genetic code)
Which of the following is the
function of mRNA?
A. gives instructions for genetic code
B. carries instructions for genetic code
C. deletes instructions for genetic code
B
What does the diagram
represent?
Nucleotide
What are the 3 parts of a
nucleotide?
Sugar
Base (A,T,C,G)
Phosphate
Rungs of
the ladder
What is a codon?
3 bases
Ex: AUG
Where is a codon found?
mRNA
What is an anti-codon?
brings in the
amino acid to
the codon
Where is an anti-codon found?
tRNA
In rabbits, the allele for black coat (B) is
dominant over the allele for white coat (b).
What would the offspring be if you crossed
two heterozygous parents?
BB
Bb
Bb
bb
3 black : 1 white
-------------------1 Hom Dominant
2 Heterozygous
1 Hom Recessive
What would the offspring be if you crossed
a heterozygous rabbit with a homozygous
dominant rabbit?
B
b
B
BB
Bb
B
BB
Bb
100% Black
-------------------50% Homozygous
Dominant
50% Heterozygous
In humans, "unattached" earlobes are dominant over
"attached" earlobes. "Widows peak" hairline is
dominant over "non-widows peak" hairline. Use E and
e for the earlobe phenotype alleles, and W and w for
the hairline phenotype alleles. How would you
describe the genotype of offspring Eeww?
A. homozygous dominant for earlobes & homozygous
dominant for widows peak
B. homozygous recessive for earlobes & homozygous
recessive for widows peak
C. heterozygous for earlobes & homozygous recessive
for widows peak
C
What amino acid chain will produced by the
DNA strand below?
TAC AGG CTT ACT
AUG UCC GAA UGA
Met Ser Glu STOP
What amino acid strand is created
from the mRNA strand below?
AUG CCC GGG UGA
Met Pro Gly STOP
What is another way to describe
DNA?
Genetic code
Which statement does NOT describe
DNA (genetic code)?
A. Composed of nucleotides
B. Sequence of genes on a chromosome
C. Instructions for translating proteins
D. Process of making proteins
Which organisms below could
have the DNA sequence of
CTAGCAGGT?
A. Gorillas
B. Humans
C. Prokaryotes
D. Algae
ALL of them!
What type of mutation is shown below (point
mutation, insertion, or deletion)?
Original
Mutation 1
U
G
A
T
C
A
U
A
A
T
C
A
Point mutation
What type of mutation is shown below (point
mutation, insertion, or deletion)?
Original
Mutation 2
U
U
G
A
G
T
A
Deletion
C
T
A
C
What type of mutation is shown below (point
mutation, insertion, or deletion)?
Original
U
G
Mutation 3
U
G
A
A
T
T
Insertion
C
C
A
A
T
If a point mutation occurs, how
many amino acids will be affected?
ONE!!!!!!
What type of individual is shown
(Male or Female)?
Female
Which homologous pair is showing trisomy?
Chromosome pair 13
HAPPY STUDYING!!!!