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.)

The answer is 0.

Explanation:

There has to be three more generations in order to the  recessive homozygotes appear again, because when the bb of the first generation died,  it only left the BB and the Bb to reproduce.

This reproduction results of a percentage of BB and Bb only.

bb will only appear again on the third generation.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.