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WorksheetsMelanin Unit
Total questions: 27
Worksheet time: 16mins
What is a mutation?
a random change in the DNA
a random change in the amino acid chain
an error that occurs when the mRNA is made
What amino acid corresponds to the following mRNA?
AGU
Serine
Valine
Glycine
Proline
This is the recessive disease pedigree. What is the genotype of the oldest male in generation II? (oldest is on the left)
Rr
RR
rr
R?
This is a recessive disease pedigree. What is the genotype of the male in generation I?
Rr
RR
R?
rr
The process to go from mRNA to a protein is called
Transcription
Translation
Replication
The process to go from DNA to mRNA is
Transcription
Translation
Replication
Which organisms are most likely to survive?
The strongest in the environment
The fastest in the environment
The most tame in the environment
The best adapted to the environment
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand:
GTAGTCA
UATUAGA
CAUCAGU
ACGACTG
CATCAGT
What do you need for natural selection to occur?
A fast organism
Genetic variation
A selective pressure AND genetic variation
Speciation
In the punnett square below, what belongs in the missing square
What is melanin?
A protein pigment that absorbs light
A protein that is waterproof and tough
A cell found in the epidermis
A vitamin that helps you sleep
Why did dark-colored rock pocket mice first appear in a population of light-colored rock pocket mice?
They have a mutation in MC1R gene that affects their fur color.
They migrated due to climate change in their original environment.
They migrated due to shortage of food supply in their original environment.
A volcano erupted and turned some mice dark.
What is the central dogma of biology?
RNA--> DNA --> Protein
Protein --> RNA --> DNA
DNA-->RNA-->Protein
RNA --> RNA --> RNA
A codon contains ___ nucleotide bases.
1
2
3
4
Insertion, deletion, and substitution are all examples of a change in a genetic sequence which is also referred to as (a)
Gene
Amino Acid
Ribose
Mutation
The change in the second codon of DNA sequence from GAA to GAG does not affect the amino acid sequence. This is an example of ........................................
Nonsense mutation
Missense mutation
Silent Mutation
Frameshift Mutation
What type of mutation is this?
STOP (nonsense) mutation
Missense mutation
Silent mutation
Frameshift mutation
A type of mutation that affect every codon beyond the point of mutation.
Point Mutation
Silent Mutation
Nonsense Mutation
Frameshift Mutation
How does the structure of DNA determine the structure of a protein?
DNA --> RNA --> codes for amino acids--> amino acids make protein--> protein makes phenotype
RNA --> DNA --> protein makes phenotype --> codes for amino acid --> amino acid makes protein
Codes for amino acid --> DNA --> amino acid makes protein --> RNA --> protein makes phenotype
Reorder the following to match the central Dogma of Genetics
DNA
RNA
Protein
I will study (a) than this assignment. This is (b) an exact copy of our test!
