Genetics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| A trait that is not passed down from parents to their offspring . | acquired trait
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| Dyed hair, pierced ears, broken bones, and scars are examples of a(n)__________. | acquired trait
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| reproduction in which one parent produces offspring without fertilization of an egg cell | asexual reproduction
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| offspring have the same genetic makeup as the parent | asexual reproduction
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| traits that are both seen when they are present | codominant trait
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| a chicken with black and white feathers is an example | codominant trait
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| a trait that is always visible in offspring whenever it is present; blocks the other genetic trait | dominant trait
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| when dominant and recessive traits are present, this is the only trait visible | dominant trait
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| a new living thing produced by one or two parents | offspring
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| a trait that is not seen when the dominant trait is also present; it is the trait blocked or masked | recessive trait
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| reproduction when two gametes are present; the sperm and egg cells | sexual reproduction
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| a cell with half the chromosomes of a diploid cell | haploid cell
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| sex cells; sperm and egg cells | gametes
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| a characteristic of an organism | trait
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| skin color, eye color, hair, allergies, face shape, and many others | inherited traits
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| one of two or more forms that a gene could take | allele
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| describes an allele that is always expressed when it is present | dominant trait
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| a pattern of inheritance in which the phenotypes of both alleles inherited are clearly expressed | codominance
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| the genetic make of an organism | genotype
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| having two alleles that are different | heterozygous
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| Rr | heterozygous dominant
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| rr | homozygous recessive
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| RR | homozygous dominant
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| having two alleles that are the same | homozygous
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| the physical appearance of an organism | phenotype
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| the likelihood that a specific event will occur | probability
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| a diagram that shows the possible genotype of offspring two parents | Punnett square
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| decribes an allele that is not expressed when the dominant allele is present | recessive trait
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| when an experiment is concluded | trial
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| uppercase letters represent this allele | dominant
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| lowercase letters represent this allele | recessive
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| During a first generation cross the offspring will be _______________. | hybrids
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| Heterozygous is also called _________________. | hybrid
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| Homozygous dominant and homozygous recessive also known as | purebreeds
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| During a second generation cross | hybrid cross
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| The phenotype result of a second generation cross | 3 to 1 75% chance of dominate offspring
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| The genotype result of a second generation | 1 to 2 to 1 Homozygous dominant: heterozygous: homozygous recessive DD -Dd- dd
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| An example of sex linked trait | colorblindess
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| an example of incomplete dominance | red and white flower make pink offspring
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| an example of dominant trait | black mouse fur hides the white fur
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| example of recessive trait | white fur is hidden by black fur
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| A genetic disorder is shown | two recessive traits are present
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Created by:
Christie Williams
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