cg20061107
02.12.2020 •
Biology
In hamsters the allele for a brown coat color (B) is dominant over the allele for a tan coat color (b). If a tan hamster is crossed with a heterozygous brown hamster, which of the following genotypic ratios can be expected?
a) 1 BB: 2 Bb: 1 bb
b) 2 BB: 0 Bb: 2 bb
c) 0 BB: 2 Bb: 2 bb
d) 2 BB: 1 Bb: 0 bb
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Ответ:
D
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Ответ:
Many Genes, Many Proteins. The expression of a multitude of genes is required for the characteristic known as skin color. This expression results in a continuous palette of skin color. The skin pigments, eumelanin and pheomelanin are synthesized in melanosomes, which form in melanocytes.
Explanation: