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11 kwi 2022 · Get free genetics worksheets, projects, quizzes, and printables. These resources target college, high school, and middle school. Topics include DNA and RNA, transcription and translation, Mendelian genetics, Punnett squares, incomplete dominance, and evolution.
This worksheet covers the basics of Mendelian inheritance and Punnett squares. Practice problems, featuring traits from the Mutt Mixer interactive, give students a chance to apply each new idea.
Most genetic traits have a stronger, dominant allele and a weaker, recessive allele. In an individual with a heterozygous genotype, the dominant allele shows up in the offspring and the recessive allele gets covered up and doesn’t show. This is called complete dominance.
When an organism has the dominant phenotype, then its genotype can be either heterozygous or homozygous dominant (you can’t tell by looking at it). In order to find out we must do a test cross using an homozygous, recessive organism. For example: In Dalmatian dogs, the gene for black spots is dominant to the gene for liver colored spots. If a ...
In pea plants, round (R) is dominant to wrinkled (r). A heterozygous female is crossed with a wrinkled male. Make a Punnett Square to determine the possible offspring.
Try these activities in your home, at a family reunion, with a group, or at work. Each activity provides an engaging way to learn about traits or better understand disease risk. Just click on the PDF icons to download and print both English and Spanish language versions. Have fun!
Most genetic traits have a stronger, dominant allele and a weaker, recessive allele. In an individual with a heterozygous genotype, the dominant allele shows up in the offspring and the recessive allele gets covered up and