A wildflower native to California, the dwarf lupin (Lupinus nonus) normally bear

Question

A wildflower native to California, the dwarf lupin (Lupinus nonus) normally bears blue flowers but occasionally bears pink flowers. Flower color is controlled by a single diploid locus, with the blue allele (8) completely dominant over the pink allele (b). In a wild population of lupins, there are 50 pink lupins and 3291 blue lupins, for a total of 3341. 1) Calculate the genotype and allele frequencies of this population, assuming that the population is in Hardy Weinberg equilibrium. Show the answers in three significant figures. (0.2 pts each) Genotype frequency of bb (i.e. the frequency of pink flowers in the population) assuming Hardy- Weinberg equilibrium: q' s0/3341-0.0149 Frequency of allele b assuming Hardy-Weinberg equilibrium: q, q^2-0.0149:0.122 Frequency of allele B assuming Hardy-Weinberg equilibrium: p# 1-q-0.878 Genotype frequency of 88 assuming Hardy-Weinberg equilibrium: Genotype frequency of Bb assuming Hardy-Weinberg equilibrium 2pq-2x0.87765x0.12235-0.215 2) Seed pods, which is an indicator of fecundity, was counted from the blue and pink lupins in the population. Based on the data, the relative fitness of each genotype were determined to be as follows: Given these data, what can you say about how well blue lupins survive and reproduce compared to pink lupins in this environment? (pt) Given this data, I can infer that the survival and reproduction rate of the pink lupins will be 0.667 compared to the maximum survival and reproduction rate of the blue lupins.

Explanation / Answer

The fitness of an individual is its ability to survive and produce viable offspring. Natural selection decreases the frequency of a genes that decrease fitness and increases the frequency of a genes that increase fitness in the population. In other words, the frequency of the genes is increases due to Natural selection. From the data calculated above, it is evident that the frequency of dominant allele increases (in homozygous dominant and heterozygous form) thus the blue flower color is favored by the Natural selection.

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