Podcast
Questions and Answers
What is the probability of a coin landing on heads?
What is the probability of a coin landing on heads?
Which of the following genetic disorders is recessive?
Which of the following genetic disorders is recessive?
In a dihybrid cross, how many phenotypic outcomes can typically arise?
In a dihybrid cross, how many phenotypic outcomes can typically arise?
What is the contribution of Gregor Mendel to the field of genetics?
What is the contribution of Gregor Mendel to the field of genetics?
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Which chromosomes determine the male gender?
Which chromosomes determine the male gender?
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What defines a heterozygous organism?
What defines a heterozygous organism?
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What type of inheritance does color blindness represent?
What type of inheritance does color blindness represent?
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In a Punnett square, which of the following correctly represents an allele for a dominant trait?
In a Punnett square, which of the following correctly represents an allele for a dominant trait?
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Which of the following describes codominant alleles?
Which of the following describes codominant alleles?
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What results from nondisjunction during meiosis?
What results from nondisjunction during meiosis?
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What is an example of a disorder that is linked to incomplete dominance?
What is an example of a disorder that is linked to incomplete dominance?
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What is the likelihood of obtaining a homozygous recessive phenotype from a monohybrid cross between two heterozygous parents?
What is the likelihood of obtaining a homozygous recessive phenotype from a monohybrid cross between two heterozygous parents?
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How many generations should a pedigree include for proper interpretation, according to genetic principles?
How many generations should a pedigree include for proper interpretation, according to genetic principles?
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In a monohybrid cross, what is a typical expected outcome ratio of dominant to recessive traits?
In a monohybrid cross, what is a typical expected outcome ratio of dominant to recessive traits?
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Which statement best describes polygenic traits?
Which statement best describes polygenic traits?
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Which term describes chromosomes that are inherited together due to their physical proximity on the same chromosome?
Which term describes chromosomes that are inherited together due to their physical proximity on the same chromosome?
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What term is used for the family tree that displays genetic traits through generations?
What term is used for the family tree that displays genetic traits through generations?
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What does the term 'diploid' refer to?
What does the term 'diploid' refer to?
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Which of the following is a result of Gregor Mendel's principle of independent assortment?
Which of the following is a result of Gregor Mendel's principle of independent assortment?
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Which type of phenotype results from incomplete dominance?
Which type of phenotype results from incomplete dominance?
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Study Notes
Key Genetic Terms
- Alleles: Different forms of a gene for a particular trait
- Heterozygous: An organism that has two different alleles for a particular trait
- Homozygous: An organism that has two identical alleles for a particular trait
- Gregor Mendel: Independent assortment; genes for different traits separate independently, each gamete carries one allele for each gene
- Incomplete dominance: Heterozygous phenotype is between the two homozygous phenotypes (e.g., red + white = pink)
- Polygenic traits: One gene impacts a characteristic (e.g., human skin color)
- Codominant alleles: Both alleles expressed in heterozygous individuals (e.g., blood type AB)
- Diploid (2N): A cell or organism that has two sets of chromosomes. One set from each parent.
- Haploid (N): Half set of chromosomes, one of each in gametes (e.g., human egg or sperm)
- Linked genes: Genes on the same chromosome
- Gene maps: Based on the frequency of crossing over; more of ten genes crossing over more they are on the chromosome
- Probability: Likelihood of an outcome (e.g., 50:50 chance of flipping heads or tails)
- Sex-linked genes: A gene located on a sex chromosome (X or Y)
- Pedigrees: Family tree on genetic traits (○ is female, □ is male).
- Dominant allele: Expressed after heterozygous or homozygous (uppercase)
- Recessive allele: Only expressed when homozygous recessive (lowercase)
- Nondisjunction: Failure of chromosomes to separate during meiosis.
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Description
Test your knowledge of essential genetic terminology with this quiz. Explore concepts like alleles, genotype differences, and the principles established by Gregor Mendel. Perfect for biology students looking to reinforce their understanding of genetics.
