WorksheetsMelanin: Pedigrees, Punnett Squares, Protein Syn. & Mutations
Total questions: 42
Worksheet time: 34mins
To look at families
To make determinations about the offspring
To track traits in families
Nothing
The phenotype of an individual is the ____.
genetic make up of an individual
Ex) AA
physical traits shown by an individual
Ex) curly hair
the alleles
a picture of the chromosomes
This picture shows____
male & female connected by a marriage line
male and female siblings
grandparents
offspring
6
7
All
None
Using the pedigree tracking albinism through this family, what are the genotypes for
individuals 1 & 2?
person 1 = AA
person 2 = AA
person 1 = Aa
person 2 = AA
person 1 = Aa
person 2 = Aa
person 1 = aa
person 2 = aa
Which of the following are the children of individuals 1 & 2?
3,4,5,6,7,8,9
3,5,6,9
4,7,9
4,5,6,7,8
The pedigree here shows the inheritance of free earlobes and attached earlobes in five generations of a family. Attached earlobes are caused by a recessive allele (f).
What would the genotype be of individual 14?
Ff
ff
F -
FF
A genotype is the _____.
genetic make up of an individual
Ex) Tt
a picture of the chromosomes
what the individual looks like
the physical trait shown by an individual
Ex) Brown Hair
Aa, DD, Bb, yy are all examples of ___
genotypes
phenotypes
An allele is _____
one form of a gene.
found on a centromere.
a genetic mutation.
a physical characteristic.
Organisms that have two identical alleles for a particular trait are said to be _____.
hybrid.
homozygous.
heterozygous.
dominant.
Combination of one dominant allele and one recessive allele
is referred to as _____.
homozygous dominant
heterozygous
homozygous recessive
dominant
The combinations of RR and Rr will always show up as_____
a recessive phenotype
a dominant phenotype
neither phenotype
both phenotypes
A Punnett square is used to determine _____.
the probable outcome of a cross.
the actual outcome of a cross.
only genotypes.
only phenotypes.
The likelihood that a particular event will happen is called _____.
test cross.
occurrence.
probability.
monohybrids.
With the trait of albinism, what would the genotypic ratio be for the children of parents that are AA x Aa?
2 normal pigmentation : 2 albino
3 normal pigmentation : 1 albino
2 AA : 2 Aa
1 AA : 2 Aa : 1 aa
With the trait of albinism, what would be the phenotypic ratio for the children of parents that were Aa x aa?
2 Aa : 2 aa
1 AA : 2 Aa : 1 aa
2 normal pigmentation : 2 albino
3 normal pigmentation : 1 albino
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
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
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand:
GTAGTCA
UATUAGA
CAUCAGU
ACGACTG
CATCAGT
What is the central dogma of biology?
RNA--> DNA --> Protein
Protein --> RNA --> DNA
DNA-->RNA-->Protein
RNA --> RNA --> RNA
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
What type of mutation involves substituting a DNA base with a different base?
point mutation
frameshift mutation
silent mutation
chromosomal mutation
What type of mutation involves adding or deleting bases from the DNA, which results in new codons (a shift in the reading of the codons)?
point mutation
frameshift mutation
silent mutation
chromosomal mutation
Match the following
Substitution Point Mutation
Insertion Frameshift Mutation
Deletion Frameshift Mutation
What is the role of mRNA
Carry an amino acid to the ribosome
Copy the instructions from DNA and carry it out of the nucleus
Make up the ribosomes
Where does Transcription occur
Nucleus
Ribosome
ER
Mitochondria
Where does Translation occur?
Nucleus
Ribosome
ER
Chloroplast
Place the steps below in the correct order.
transcription
mRNA travels to the ribosome
translation
new protein is created
