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Hair color, eye color and widows peak are all Mendelain dominant recessive traits. If a couple who is heterozygous (both of them mind you) for each of the three traits what are the odds that they will have a child that has dark hair (Dom), Blue Eyes (Rec) and a […]

Q1. In Drosophila, yellow eyes, Y, are dominant to grey eyes, y. In an experiment, Dr. D breeds two individuals, one with yellow eyes and the other with grey. He finds the offspring to be 131 yellow and 58 greys. 1. What are genotypes of the adult that were crossed? […]

Imagine you are a scientist trying to determine the evolutionary relationship between two different groups of snakes.The first group of snakes lives in North America , the second lives in Africa. The two groups are very structurallysismilar,although the North American snakes are brown and white andthe African snakes are green. […]

Q1. Which of the classes of RNA molecules is linked with proteins in form the large and small subunits of a cytoplasmic structure? A) ribosomal RNA B) transfer RNA. C) messenger RNA D) primary RNA transcript Q2. In birds, males are ZZ and females are ZW. A recessive lethal allele […]