Sickle cell anemia is a disease that causes red blood cells to clump. It often leads to blood clots and strokes, among other conditions. Sickle cell anemia is due to a recessive allele and nearly all homozygous individuals have the disease, but its effects vary. Some individuals with the disease can live fairly normal lives well into middle age, and others die in infancy. Sickle cell anemia exhibits:
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When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?
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Prior knowledge can be gained from personal experience and a) forming well-developed hypotheses. b) listening to opinions of other people on a topic. c) researching previous experiments and results on a topic. eliminate d) no other methods. it can only be gained by personal experience.
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Biology, 22.06.2019 17:00
Some species of wasps are social. the queen starts a colony from scratch each spring. she builds a small nest, and lays and raises a group of female workers. the workers enlarge the nest while the queen continues to lay eggs. unfertilized eggs become males that mate with newly hatched females. all of the wasps except the newly fertilized females die by the summer. which best describes this behavior? a)it is beneficial only to the males that do not fertilize eggs. b)it is beneficial only to the female workers that are not fertilized. c)it is beneficial to each one of the individual colony members. d)it is beneficial to the whole species, but not to all of the individual members.
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Sickle cell anemia is a disease that causes red blood cells to clump. It often leads to blood clots...
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