How is sickle cell anemia an example of a pleiotropy? sickle cell anemia is caused by a pair of genes present on different loci of the same chromosome. sickle cell anemia shows a continuous variation in the population. sickle cell alleles affect various organ systems, such as the circulatory and respiratory systems

Twind is considered to be an abiotic factor because it.?

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

Scenario #2 in 2001, a population of 2,500 poison dart frogs lived in the amazon rain forest. due to increased deforestation, the population dwindled to 25 frogs in 2019. new government regulations were enacted in 2022, successfully putting an end to the deforestation of the amazon rain forest. once deforestation was stopped, the poison dart frog population was able to recover. by 2050, the population reached 8,000 frogs, of that population, 20 are homozygous recessive for being spotted (ss genotype). q2- ? q- p- p2- 2pq-