You have been tracking a population of birds in the jungle and over

several generations observed the following genotype frequencies for a given locus, B : 12% BB, 28% Bb, and 60% bb. The climate changed abruptly and resulted in the death of all homozygous recessive birds. In the next generation, the recessive homozygotes died shortly after birth. What percentage of all newborn bird died ?(Hint: You will need to recalculate the genotype frequencies after a portion of the population died and also use the product rule to calculate the proportion of matings that could lead to homozygous recessive individuals in the next generation.)

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