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 codeB. carries instructions for genetic codeC. deletes instructions for genetic code
B
What does the diagram represent?
Nucleotide
What are the 3 parts of a nucleotide?
Phosphate
Base (A,T,C,G)Sugar
Make up
the
backboneRungs of
the ladder
What is a codon?
3 basesEx: 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 Dominant2 Heterozygous1 Hom Recessive
What would the offspring be if you crossed a heterozygous rabbit with a homozygous
dominant rabbit?
BB Bb
BB Bb
B b
B
B
100% Black--------------------50% Homozygous
Dominant50% 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?
C
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
What amino acid chain will produced by the DNA strand below?TAC AGG CTT ACT Met Ser Glu STOP AUG UCC GAA UGA
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 nucleotidesB. Sequence of genes on a chromosomeC. Instructions for translating proteinsD. Process of making proteins
Which organisms below could have the DNA sequence of
CTAGCAGGT? A. GorillasB. HumansC. ProkaryotesD. Algae
ALL of them!
What type of mutation is shown below (point mutation, insertion, or deletion)?
U G A T C AOriginal
U A A T C AMutation 1
Point mutation
U G A T C AOriginal
U G A T CMutation 2
Deletion
What type of mutation is shown below (point mutation, insertion, or deletion)?
U G A T C AOriginal
U G A T C A TMutation 3
Insertion
What type of mutation is shown below (point mutation, insertion, or deletion)?
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!!!!