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One of a set of a matching pair that contain genes (alleles) for the same charactoristic and at the same locaion on a chromosome.
Homologous Chromosomes
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WHEN HOMOLOGOUS CHROMOSOMES FAIL TO SEPERATE CORECTLY IN ANAPHASE I OR II
NONDYSJUNCTION
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NONDYSJUCTION OF THE 21ST CHROMOSOME
TTRISOMY 21 OR DOWN SYNDROME
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A FATAL NONDYSJUNCTION OF THE 21ST CHROMOSOME WHEN THERE IS ONLY ONE INSTEAD OF TWO.
MONOSOMY 21
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THE TRANSMISSION OF TRAITS FROM ONE GENERATION TO THE NEXT
HEREDITY
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WHEN A TRUE WHITE PEA PLANT (pp) AND A TRUE PURPLE PEA PLANT (PP) MIX TOGETHER ALL OFFSPRING ARE PURPLE? WHAT IS THE PHENOTYPE OF THE OFFSPRING? WHAT IS THE GENOTYPE? WHICH TRAIT IS DOMINANT? WHICH TRAIT IS RECESSIVE?
- PHENOTYPE=PURPLE
- GENOTYPE=Pp
- DOMINANT=PURPLE
- RECESSIVE=WHITE
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USING THE EXAMPLE OF THE PEA PLANTS COLORS, GIVE AN EXAMPLE OF THE FOLLOWING GENOTYPES: HOMOZYGOUS DOMINANT, HETEROZYGOUS, AND HOMOZYGOUS RECESSIVE.
- HOMOZYGOUS DOMINANT=PP
- HETEROZYGOUS=Pp
- HOMOZYGOUS RECESSIVE=pp
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WHAT IS THE CHROMOSOMAL THEORY OF INHERITANCE?
GENES ARE LOCATED ON SPECIFIC LOCATIONS OF CHROMOSOMES AND THIER BEHAVIOR DURING MEIOSIS ACCOUNTS FOR HEREDITY PATTERNS
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GENES ARE LOCATED ON SPECIFIC LOCATIONS OF CHROMOSOMES AND THIER BEHAVIOR DURING MEIOSIS ACCOUNTS FOR HEREDITY PATTERNS. WHAT THEORY IS THIS?
THE CHROMOSOMAL THEORY OF INHERITANCE
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FOR EACH INHERITED CHARACTOR, AN ORGANISM INHERITS ___ ALLELES.
2
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RECESSIVE GENETIC DISORDER LOCATED ON CHOMOSOME 7
CYSTIC FIBROSIS
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WHEN AN EXPRESSED PHENOTYPE IS SOMEWHERE BETWEEN THAT OF THE PARENTS
INCOMPLETE DOMINANCE
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THE SCIENTIFIC STUDY OF HEREDITY
GENETICS
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A HERITABLE FEATURE THAT VARIES AMONG INDIVIDUALS, SUCH AS FLOWER COLOR
CHARACTOR
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EACH VARIENT OF A CHARACTOR, SUCH AS PURPLE OR WHITE FLOWERS
TRAIT
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WHAT IS IT CALLED WHEN YOU CROS A PUREBRED WHITE PEA PLANT WITHA PUREBRED PURPLE PEA PLANT?
MONOHYBRID CROSS
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ALTERNATE VERSIONS OF A GENE
ALLELES
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AN ORGANISM THAT HAS TWO IDENTICAL ALLELES IS SAID TO BE ___________ FOR THAT GENE.
HOMOZYGOUS
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AN ORGANISM THAT HAS 2 DIIFERENT ALLELES FOR A GENE IS SAID TO BE ___________.
HETEROZYGOUS
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IF TWO ALLELES OF AN INHERITED PAIR DIFFER, THAN ONE DETERMINES THE ORGANISM'S APPERARENCE AND IS CALLED THE _____(1)_____ ALLELE; THE OTHER HAS NO NOTICEABLE EFFECT ON THE ORGANISM'S APPEARANCE AND IS CALLED THE ____(2)____ ALLELE.
1) DOMINANT; 2) RECESSIVE
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GENETICS USE (1)______ ______ TO REPRESENT DOMINANT ALLELES AND (2)______ ______ TO REPRESENT RECESSIVE ALLELES.
1) UPPERCASE LETTERS; 2) LOWERCASE LETTERS
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A SPERM OR EGG CARIES (1)____ ALLELE FOR EACH INHERITED CHARACTOR BECASUE THE TWO ALLELES FOR A CHARACTOR (2)___________ DURING THE PRODUCTION OF (3)__________. THIS STATEMENT IS CALLED THE LAW OF (4)___________.
1) ONE; 2)SEPERATE; 3)GAMETES; 4) SEGREGATION
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What is this picture an example of? 
A MONOHYBRID CROSS
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WHAT IS THIS AN EXAMPLE OF?
THE LAW OF SEGREGATION
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TABLE USED TO DIAGRAM POSSIBLE GENOTYPES FOR OFFSPRING
PUNNET SQUARE
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AN ORGANISMS PHYSICAL APPEARANCE
PHENOTYPE
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AN ORGANISMS GENETIC MAKEUP
GENOTYPE
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SOMEONE WHO IS NORMAL THEMSELVES BUT HAS HETEROZYGOUS ALLELES FOR A GENETIC DISORDER
CARRIER
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HUNTINGTON'S DISEASE IS AN EXAMPLE OF A _________ GENETIC DISORDER.
DOMINANT
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CYSTIC FIBROSIS IS AN EXAMPLE OF A ___________ GENETIC DISORDER.
RECESSIVE
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HYPERCHOLESTEROLEMIA IN HUMANS AND PINK SNAP DRAGON PLANTS IS AN EXAMPLE OF __________ __________.
INCOMPLETE DOMINANCE
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WHEN BOTH ALLELES ARE EXPRESSED IN HETEROZYGOUS INDIVIDUALS
CODOMINANCE
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WHAT IS AN EXAMPLE OF CODOMINANCE IN HUMANS?
BLOOD TYPE ( SPECIFICALLY TYPE AB)
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A PROPERTY WHEN ONE GENE INFLUENCES SEVERAL CHARACTORISTICS
PLEIOTROPY
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WHAT IS AN EXAMPLE OF PLEIOTROPY IN HUMANS?
SICKLE-CELL DISEASE
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WHAT CHARACTORISTICS IN HUMAN ARE EXAMPLES OF POLYGENIC INHERITANCE?
SKIN COLOR AND HEIGHT.
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THE ADDITIVE EFFECTS OF TWO OR MORE GENES ON A SINGLE PHENOTYPIC CHARACTOR
POLYGENIC INHERITANCE
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LETTERS ON HOMOLOGOUS CHROMOSOMES STAND FOR GENES THAT CONTROL SPECIFIC ________, SUCH AS HAIR COLOR.
TRAITS
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DO ALLELES SEPERATE DURING FETILIZATION?
NO
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EACH GAMETE CONTAINS ____ ALLELE FOR EACH CHARACTORISTIC.
ONE
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WHEN DO PAIRS OF ALLELES SEPERATE?
DURING MEIOSIS
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