12 – ½ more school days… 11/30/2011 Please take a study guide off the front desk. TEST TOMORROW!

Sex cell (gametes = egg and sperm) 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?

In which part is DNA unwinding?

What is taking place at Part 2? Transcription

In which part is translation occurring?

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 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) Make up the backbone Rungs of the ladder Phosphate

What is a codon? 3 bases Ex: AUG

Where is a codon found? mRNA

brings in the amino acid to the codon What is an anti-codon? brings in the amino acid to the codon

Where is an anti-codon found? tRNA

-------------------- 1 Hom Dominant 2 Heterozygous 1 Hom Recessive 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? 3 black : 1 white -------------------- 1 Hom Dominant 2 Heterozygous 1 Hom Recessive BB Bb bb

-------------------- 50% Homozygous Dominant 50% Heterozygous What would the offspring be if you crossed a heterozygous rabbit with a homozygous dominant rabbit? 100% Black -------------------- 50% Homozygous Dominant 50% Heterozygous B b BB Bb B B

In humans, "unattached" earlobes are dominant over "attached" earlobes 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? homozygous dominant for earlobes & homozygous dominant for widows peak homozygous recessive for earlobes & homozygous recessive for widows peak heterozygous for earlobes & homozygous recessive for widows peak C

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 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 U G A T C U A T C Mutation 1 Point mutation

What type of mutation is shown below (point mutation, insertion, or deletion)? Original U G A T C U G A T C Mutation 2 Deletion

What type of mutation is shown below (point mutation, insertion, or deletion)? Original U G A T C U G A T C Mutation 3 Insertion

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!!!!