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Characteristics and Inheritance
  • 1. What is an Allele?
A) a cell with 23 chromosomes, instead of 23 pairs
B) the same things as a gamete
C) the chromosome found in the cell before replication
D) the different forms of the same gene
  • 2. Which of the following is a Dominant allele?
A) an allele that is blocked by or hidden
B) an allele that blocks or hides a recessive gene
  • 3. Which of the following is a Recessive allele?
A) an allele that is blocked by or hidden
B) an allele that blocks or hides a recessive gene
  • 4. Which of the following is Homozygous?
A) when a person's two alleles for a gene are different
B) when you got your genes from dad
C) when a person's two alleles for a gene are the same
D) when you got your genes from mum
  • 5. Which of the following is Heterozygous?
A) when a person's two alleles for a gene are the same
B) when a person's two alleles for a gene are different
C) when you got your genes from mum
D) when you got your genes from dad
  • 6. Heterozygous genotype for any allele...
A) always results in the recessive characteristic
B) always results in the dominant characteristic
  • 7. Homozygous genotype for any allele...
A) always results in the recessive characteristic
B) can result in either the dominant characteristic or the recessive characteristic
C) always results in the dominant characteristic
  • 8. An example of a heterozygous genotype
A) Tt
B) tt
C) TT
  • 9. Where do your allele's come from?
A) a process that happens in mitosis of your cells
B) a process that happens in replication in your cells
C) one from mum and one from dad
D) a process that happens in meiosis of your cells
  • 10. If your mum gave you a different allele than your dad for a trait - your genotype is
A) homozygous for that trait
B) heterozygous for that trait
  • 11. A genotype is
A) A person's physical features seen for any trait
B) A person's set of alleles for a particular trait
  • 12. If F = freckles (domminant) and f = no freckles (recessive) a person who has the Genotype Ff will
A) not have freckles
B) have freckles
  • 13. What are the options if both dad and mum are heterozygous for the genotype of straight thumb

    (use T for dominant)
A) TT
B) tt
C) Tt
D) all of these
  • 14. True or False:

    Your genotype is based on your phenotype?
A) True
B) False
  • 15. True or False:

    Incomplete Dominance occurs when neither allele is dominant over the other
A) True
B) False
Students who took this test also took :
Introduction to genetics
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Gene Technologies
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