Genetics Review
DNA:
1. Color in the diagram below using this key:
Deoxyribose – red
Phosphate – blue
Adenine – yellow
Cytosine – green
Guanine – orange
Thymine - black
2.
3.
4.
5.
6.
7.
Circle one complete nucleotide in the drawing above.
What are the parts of one nucleotide?
What is considered the backbone to the DNA strand?
Circle the complimentary strand.
What is DNA’s job?
Where does a mutation occur? (first DNA replication activity)
Mitosis:
1. Be able to identify a drawing of each phase, the major events that occur in each phase, and the correct
order in which the phases occur.
2. What is characteristic of a cancerous cell? (Mitosis Internet Activity)
Protein synthesis:
1. Fill in the blanks in the following chart.
DNA - Template Complimentary DNA
Strand
TTACGG
AATGCC
GGCGGC
mRNA
Amino Acids
AAUGCC
asn, ala
ACGUAG
AGACTC
GATAAG
CUGGCUACA
2. Label the picture below using the following words:
codon, anticodon, ribosome, nucleus, tRNA,
mRNA, amino acid
3.
4.
5.
6.
Distinguish between transcription and translation.
What is the job of the mRNA, ribosome, tRNA, rRNA, amino acid.
How many amino acids are there? What codes for an amino acid?
Fill in the table below:
DNA
5-carbon sugar
Nucleotides
Single or double stranded
RNA
Inheritance:
1.
Define homozygous dominant
2.
Define homozygous recessive
3.
Define heterozygous
4.
Define allele
5.
Outline the process of meiosis (how is it different from mitosis)?
6.
Buttercup flower color is determined by a gene with 2 alleles. Yellow (Y) is the dominant allele, and
white (y) is the recessive allele.
a. Draw a Punnett square for the cross between a homozygous recessive white flowered plant
and a homozygous yellow flowered plant, providing the probability of each resulting
phenotype and genotype.
b. Cross two children from the parent cross (one just did). Provide the probability of each
resulting genotype and phenotype.