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1Mendel's particulate theory of inheritance replaced the blending theory of inheritance.
A)True
B)False


2What are the three parts of the particulate theory?


3What is the Law of Segregation?


4What is the Law of Independent Assortment?


5Which of Mendel's Laws explains a source of genetic variation?


6Define allele.


7Alleles that mask the expression of other alleles but are themselves expressed are ________, while alleles whose expression is masked by dominant alleles are _________.


8Define genotype.


9Define phenotype.


10A phenotype can be either homozygous or heterozygous.
A)True
B)False


11The first generation of offspring resulting from a cross of distinctly different parental types is called the ________.


12A genetic cross involving two traits is called a ________ cross.
A)monohybrid
B)dihybrid
C)bihybrid
D)back


13Lethal inheritance involves inheriting a gene that kills the offspring.
A)True
B)False


14________ occurs when the heterozygous genotype results in an intermediate characteristic.
A)Codominance
B)Incomplete dominance
C)Hybrid inheritance
D)Simple inheritance


15________ occurs when the heterozygous genotype shows the phenotypic effects of both alleles fully and equally.
A)Codominance
B)Incomplete dominance
C)Hybrid inheritance
D)Simple inheritance


16What are the four possible blood types of the ABO system?


17A person with type B blood has antibodies that agglutinate type B blood.
A)True
B)False


18List three human traits that are determined by a single gene that you'll study today.


19In pedigrees, what does a solid circle represent? An empty square?


20Fragments of DNA that move between and within chromosomes are called ________.





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