For many generations, the following genotypic frequencies were observed in a large population of dinosaurs: 4 percent aa, 32 percent aa, and 64 percent aa. the climate changed abruptly and resulted in the death of all homozygous recessive dinosaurs (s = 1). in the next generation, the recessive homozygotes died shortly after birth. what percentage of these newborn dinosaurs died? show calculation
a) 4% b) 8.5% c) 19.7% d) 36.8% e) 44%

C) 19.7%

Explanation:

The new population distribution after climate change wiped out homozygous recessive dinosaurs is:

The percentage of offspring of this new population that are homozygous recessive is given by:

19.7% of these newborn dinosaurs died

sexual reproduction produces offspring with novel combinations of genes. species that reproduce sexually must maintain two different types of individuals, males and females, which can limit the ability to colonize new habitats as both sexes must be present.

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a