Download Genotype - morescience

#1
Name __________________
Period ___ Date ________
Inquiry into Genetics
Trait
Hair color
Eye color
Alleles
Genotype
Phenotype
Black,
brown
Red,
Blond
HH
Hh
hh
Brown
Brown
Blond(e)
EE
Ee
ee
Brown
Brown
Blue
Brown
Hazel
Green
blue
Inquiry into Genetics
#
Trait
Alleles
Dominant
Recessive
Genotypes
Phenotypes
1
_______
( __ )
_______
( __ )
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_____
_________________
_________________
_________________
2
_______
( __ )
_______
( __ )
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_____
_____
_________________
_________________
_________________
3
_______
( __ )
_______
( __ )
_____
_____
_____
_________________
_________________
_________________
4
_______
( __ )
_______
( __ )
_____
_____
_____
_________________
_________________
_________________
5
_______
( __ )
_______
( __ )
_____
_____
_____
_________________
_________________
_________________
6
_______
( __ )
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( __ )
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_________________
_________________
_________________
7
_______
( __ )
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( __ )
_____
_____
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_________________
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8
_______
( __ )
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( __ )
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_____
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_________________
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HH - Homozygous Dominant
Hh - Heterozygous
hh - Homozygous Recessive
Trait
Hair color
Eye color
Genotype
Phenotype
Black
brown
Red
Blond
HH
Hh
hh
Brown
Brown
Blond(e)
Brown
EE
Ee
ee
Brown
Brown
Blue
Alleles
Hazel
Green
blue
Dom/Rec
1
4
2
3
6
5
7
7
8
9
Genes – are located on chromosomes,
instructions for traits/characteristics
Trait - a distinguishing characteristic (hair color)
Alleles - are the different forms of a gene trait
(Brown, Blonde, Black, Red)
Gene loci
Alleles are either:
Dominant (capital letter)
Recessive (lower-case letter)
We have 2 alleles for each gene trait
– why?
Genotype:
Homozygous Dominant: TT
Heterozygous: Hh
Homozygous Recessive: ee
Gene locus
Phenotype:
Hair color? Eye color? Tongue Roll?
Check for Understanding
Trait - a distinguishing characteristic
Alleles - the different forms of a gene trait
Gene loci
Gene locus
Is it an allele or a trait?
a. Blue eyes
b. Height
c. Skin tone
d. Dimples?
e. Attached or detached lobes
f. Hair texture
g. Right-handed
h. Flat feet
i. Tongue Rolling?
Karyotype – a profile of a person’s chromosomes, organized by scientists
Matching homologous pairs by size (largest to smallest), shape, centromere
location, & gene band patterns.
Enables scientists quick spotting of chromosomal abnormalities.
Pairs (1 - 23)
1. Arranged in ___________________
2. Chromosomes #1 – 22 are called
autosomal chromosomes.
____________
3. Chromosomes #23 are called
_______
sex chromosomes
For males: __
__, Females: __
X Y
X __
X
4. How many total chromosomes in
humans? ____
46 or ___
23 pairs.
http://learn.genetics.utah.edu/content/begin/traits/karyotype/