You can conclude that the father was either heterozygous for that trait or fully homozygous.
Answer:
DNA is double-stranded, while RNA is single-stranded. RNA contains ribose as a sugar, while DNA contains deoxyribose. Also, three of the nitrogenous bases are the same in the two types (adenine, cytosine, and guanine), but DNA contains thymine while RNA contains uracil.
Answer: Because of the texture of their skin. Lizards have dry scaly skin, whereas the frogs have thin, moist skin.
Down syndrome is caused by the nondisjuction of the chromosome 21.
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There are no choices but examples of biotic factors are trees, mosses, ferns, fungi, mammals, birds, reptiles, worms, plants, and lichens.
