Transcript dominant - TeacherWeb

Opening Activity
In your notebook… think about your genetic
family…
1. Are there some traits that your parents have but
you don’t?
2. Are there some traits that you have but your
parents don’t?
Mind over Mendel
Conner Middle School
Mr. Cann
8th Grade Science
Welcome to Genetics!
Vocabulary Words to know:
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Dominant
Recessive
Co-Dominant
Alleles
Chromosomes
Punnett Squares
VOCAB FLIP (fold)
VOCAB FLIP (cut)
VOCAB FLIP
Dominant
Recessive
Co-Dominant
Alleles
Chromosomes
Punnett
Squares
DOMINANT
• Observed trait of an organism that mask the
recessive form of a trait.
• For example, the allele for widow's peak is
dominant and the allele for straight hairline is
recessive. One widow's peak allele (dominant) and
one straight hairline allele (recessive), they will
have a widow's peak.
RECESSIVE:
• Trait of an organism that can be masked by the
dominant form of a trait.
• Traits due to recessive alleles are only observed
when two recessive alleles are present.
CODOMINANCE:
• Codominance is a relationship between two
versions of a gene. If two dominate, but different,
genes are expressed, can sometimes create a
blended phenotype (brown eyes + green eyes =
hazel eyes)
ALLELE
• alternative forms of a gene for each variation of a
trait of an organism.
CHROMOSOMES:
• are thread-like structures located inside the
nucleus of animal and plant cells containing
DNA.
Each chromosome is made of protein and a
single molecule of deoxyribonucleic acid (DNA).
Passed from parents to offspring, DNA contains
the specific instructions that make each type of
living creature unique.
PUNNET SQUARE
• The Punnett square is a diagram that is used to
predict an outcome of a particular cross or
breeding experiment.
• It is named after Reginald C. Punnett, who
devised the approach. The diagram is used by
biologists to determine the probability of an
offspring having a particular genotype.
PARTNER UP
If it’s all Disease to
you?
Pick a Disease
Alzhemier’s Disease
Angelman syndrome
Arthritis
Canavan disease
Color blindness
Cystic fibrosis
Diabetes (type I)
Duchenne muscular
dystrophy
Haemochromatosis
Haemophilia
Heart Disease
Hemochromotosis
High Blood Pressure
Klinefelter syndrome
Marfan syndrome
Huntington’s disease
Neurofibromatosis
Phenylketonuria
Polycystic kidney disease
Prader–Willi syndrome
Sickle-cell disease
Spinal muscular atrophy
Tay–Sachs disease
Turner syndrome
RUBRIC BY DESIGN
http://rubistar.4teachers.org/index.php
KAHOOT.IT
https://www.youtube.com/watch?v=GTiOETaZg4w
https://www.youtube.com/watch?v=Mehz7tCxjSE