Transcript Back
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• What is the
complimentary strand
of the following:
GATTCATGG
• CTAAGTACC
Back
• What are the 6
molecules that make
up DNA.
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Adenine
Thymine
Guanine
Cytosine
Deoxyribose Sugar
Phosphate
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• Name the type of
mutation where one
piece of DNA is
removed.
• What is deletion.
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• What are purines and
prymidines?
• Purines – Guanine &
Adenine
• Prymidines – Cytosine
& Thymine
• Classification of
nitrogenous bases
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• What are the three
scientists to help to
discovery DNA and
what did they
contribute to the
discovery?
• Watson – Model of
DNA
• Crick – Model of DNA
• Franklin - Helix
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• The forming of a
Protein from mRNA is
called…
• Translation (different
language)
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• The forming of mRNA
from DNA is called …
• Transcribing (same
language)
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• What is a phenotype
and genotype of an
individual?
• Phenotype – Physical
traits
• Genotype – Genes
inside
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• Name 3 ways in which
RNA is different from
DNA.
• Ribose Sugar
• Single Stranded
• Uracil
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• Describe how a trait is
expressed from the
DNA. (hint – mention
the processes and the
jobs of all 3 RNA’s)
• mRNA is transcribed
from DNA in the
nuclues. mRNA
travels out to the
ribosome (rRNA)
where it is translated
into proteins. tRNA
match the amino acids
to the correct codon of
the mRNA. Finally the
amino acid chain is
folded into a protein.
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• Who is the father of
genetics?
• Gregor Mendel
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• Each individual
inherits one allele
from Mom and one
from Dad. This
expresses which of
the following
Mendelain laws
• Law of Segregation
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• Two mice with black
fur were crossed and
produced offspring
with black fur and
offspring with white
fur. If black is
dominate over white,
what would represent
the most probable
genotypes of the
parental mice?
• Bb x Bb Heterozygous
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• In humans, dimples is
completely dominant
to no dimples. Two
parents that are both
heterozygous for
dimples are expecting
a child. What are the
chances that the child
will have dimples?
Complete a punnett
square.
• 75%
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• What is best way to
determine the
phenotype of a guinea
pig is to?
• Observe it
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• A cross of a red flower
with a white flower
produces pink flowers.
This is a type of
inheritance called
• In-complete
Dominance
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• If a mothers blood
type if AB and dad’s
blood type is A
(homozygous). Will
Mom will be able to
give blood to all of her
children?
• No. 50% of her
children will have
Type A and 50% will
have Type AB
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• Human blood types is
an example of
___________. Name
the two types of
dominance associated
with the blood types.
• Multiple Alleles
• Co-Dominance &
Complete Dominance
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• A woman carrying the
gene for hemophilia
marries a man who is
a hemophiliac. What
percentage of their
children can be
expected to have
hemophilia? Complete
Punnett Square
• 50%
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• Co-Dominance. A
black chicken and a
white chicken produce
a checked chicken. If
two checkered
chicken are crossed
what is the phenotypic
and genotypic ratios?
Show your work using
a Punnett square.
• Pheno – B:C:W
0:2:2
• Geno - BB:BW:WW
0: 2 : 2
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• What shapes
represent males and
females in a
pedigree?
• Square – Males
• Circles - Females
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• True or False: Genetic
counselors often help
people with a family
history of genetic
disorders. Give an
example.
• True
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• Name three purposes
of a pedigree.
• To understand how
traits are passed on
• Identify disorders in
future generations
• Represent genetic
relationships between
family members
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• Identify the type of
pedigree below:
• Sex-Linked
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• Identify the type of
pedigree below & give
the genotype of
individual I-1.
• Autosomal Dominant
• Heterozygous
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• Complete a Dihybrid of two heterozgous
yellow round seeded pea plants. (yellow
round seeds is dominant to green
wrinkled seeds)