|
What percentage of the offspring will have black masks In Racoons, it is a dominant trait for them to develop a black mask around their eyes. If they inherit the recessive trait, they don't get a mask but instead their face is all gray. Cross a hybrid black mask raccoon with a gray face. 0% 50% 75% 100% In anteaters, long tongues are dominant over short tongues. Cross a homozygous long tongue with a short tongue What percentage of the offspring will long tongues? 0% 50% 75% 100% On the planet Zolar, pink spots are dominant over purple spots on the giant alien cows that live there. What percentage of the offspring will have purple spots? 0% Cross a hybrid pink spotted cow with a purple spotted cow. 50% 75% 100% What percentage of the offspring will have short horns? Long horns are dominant in Crenshaw cattle over short horns. 0% Cross a purebred long horn with a purebred short horn. 50% 75% 100% What percentage of the offspring will have black eyes Black eyes are dominant in rats, while pink eyes are recessive. 0% Cross two heterozygous black eye rats 50% 75% 100% What percentage of the offspring will have red roses. Red is a dominant color in roses. White is a recessive color in roses. Cross a heterozygous red rose with a homozygous white rose. 0% 50% 75% 100% In an experiment done by Mendel on pea height, he found that 75% of the offspring were tall and 25% were short. Which cross represents the genotypes of the parent plants that he must have used in this experiment? TT x TT Tt x tt Tt x Tt tt x tt Blue tails are dominant in critters over orange tails. Cross a heterozygous blue tail with a homozygous orange tail 0% What percentage of the offspring is expected to have orange tails 25% 50% 100% If Blue tails are dominant over orange tails. Which cross would never result in orange tails? TT x tt Tt x Tt Tt x tt tt x tt In humans tongue rolling is a dominant trait that involves specific muscle control. What percentage of the population would you expect can NOT roll their tongues? 0% 25% 50% 75% |