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  2. Test cross - Wikipedia

    en.wikipedia.org/wiki/Test_cross

    In a test cross, the individual in question is bred with another individual that is homozygous for the recessive trait and the offspring of the test cross are examined. [2] Since the homozygous recessive individual can only pass on recessive alleles, the allele the individual in question passes on determines the phenotype of the offspring. [3]

  3. Punnett square - Wikipedia

    en.wikipedia.org/wiki/Punnett_square

    The Punnett square is a tabular summary of possible combinations of maternal alleles with paternal alleles. [9] These tables can be used to examine the genotypical outcome probabilities of the offspring of a single trait (allele), or when crossing multiple traits from the parents.

  4. Reginald Punnett - Wikipedia

    en.wikipedia.org/wiki/Reginald_Punnett

    Punnett is probably best remembered today as the creator of the Punnett square, a tool still used by biologists to predict the probability of possible genotypes of offspring. His Mendelism (1905) is sometimes said to have been the first textbook on genetics; it was probably the first popular science book to introduce genetics to the public.

  5. Hereditary carrier - Wikipedia

    en.wikipedia.org/wiki/Hereditary_carrier

    Punnett square: If the other parent does not have the recessive genetic disposition, it does not appear in the phenotype of the children, but on the average 50% of them become carriers. A hereditary carrier ( genetic carrier or just carrier ), is a person or other organism that has inherited a recessive allele for a genetic trait or mutation ...

  6. Genotype - Wikipedia

    en.wikipedia.org/wiki/Genotype

    One way this can be illustrated is using a Punnett square. In a Punnett square, the genotypes of the parents are placed on the outside. An uppercase letter is typically used to represent the dominant allele, and a lowercase letter is used to represent the recessive allele.

  7. Wikipedia : Featured picture candidates/Punnett Square

    en.wikipedia.org/.../Punnett_Square

    Original – Example of a Punnett square. In this example in peas, the color yellow is determined by the dominant allele Y and the color green is determined by a recessive allele y. Reason This is a well done image of a Punnett square that effectively illustrates the topic and has high EV and relevance in the articles that it is used in.

  8. Carrie Underwood Shares Major News With Fans: "Finally!" - AOL

    www.aol.com/carrie-underwood-shares-major-news...

    Of course, this isn’t Carrie’s first time partaking in the glitz and glam in Times Square on New Year’s Eve. “I have such fun memories of performing on New Year's Rockin’ Eve in Times ...

  9. Lethal allele - Wikipedia

    en.wikipedia.org/wiki/Lethal_allele

    Punnett square for the agouti gene in mice, demonstrating a recessive lethal allele. [2] Lethal alleles were first discovered by Lucien Cuénot in 1905 while studying the inheritance of coat colour in mice. The agouti gene in mice is largely responsible for determining coat colour. The wild-type allele produces a blend of yellow and black ...