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A population of wild-flowers was scored for flower color. There were 369 blue (BB) plants, 1915 violet (BR) plants and 748 red (RR) plants. Please round your answer correctly to 4 decimal digits. What is the frequency of the blue (B) allele?

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namordu

Answer:

frequency of B allele = 0.4375

Explanation:

The population is constituted by plants with the following flower colors:

  • 369 BB (blue)
  • 1915 BR (violet)
  • 748 RR (red)

Total:  3032 individuals

The frequency of an allele is a measure of how common an allele is in a particular population. It's simply the amount of times the B allele appears divided by the total number of alleles in the population.

The frequency of the B allele can be calculated using the following formula:

[tex]freq(B)= \frac{2 * BB \ individuals \ + BR\ individuals}{Total\ number\ of\ alleles}[/tex]

  • The B allele is present twice in the blue plants and once in the violet plants.
  • Each individual has 2 alleles, so the total number of alleles is the total population number × 2.

[tex]freq(B)= \frac{2 * 369 \ + 1915}{2\ *\ 3032}[/tex]

[tex]freq(B)= 0.4375 [/tex]

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