Introduction of Genetics – Flashcards
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Which statement describes Mendel's hypotheses regarding gametes?
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A gamete carries one allele for a gene.
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What controls traits and inheritance?
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nucleic acids
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Scientists often use fruit flies as a method to test hypotheses about human genes. Why are fruit flies advantageous in the study of human inheritance?
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They reproduce quickly and take up little space.
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The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Yellow pods are the dominant trait. The flowchart is missing the labels that describe the traits.
http://media.education2020.com/evresources/3209-06-01/mc006-1.jpg
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A, C, and D
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Gregor Mendel's research formed the basis of the field of
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genetics.
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What number should replace the letter x in the "Seed color" row?
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2,001
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Nucleic acids offer variability because they contain alternate forms of genes called
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alleles
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A scientist wants to examine a genetic disease in humans. The scientist hypothesizes that the disease can be treated by using gene therapy. Humans take a long time to reproduce and develop, so the scientist will have to
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develop new methods to test the hypothesis.
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Which is the best example of a hypothesis leading to new experimental methods?
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Thomas Hunt Morgan continued the genetic research of Gregor Mendel, but Morgan used fruit flies.
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During an experiment, a scientist crosses a pea plant that has purple flowers with a pea plant that has white flowers. The plants that result from this cross in the F1 generation have both purple and white flowers. What can the scientist conclude?
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The plants in the P generation were not true-breeding.
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Allele
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the gene form for each variation of a trait
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Dominant
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a word describing a visible trait of an organism that masks a recessive trait
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F1 generation
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the offspring of the P generation in Mendel's experiments
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F2 generation
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the offspring of the F1 generation in Mendel's experiments
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Genetics
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the study of heredity in organisms
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Heredity
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the process of passing traits from parents to offspring
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P generation
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the parental generation in Mendel's experiments
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Recessive
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a word describing a hidden trait of an organism that is masked by a dominant trait
