20. Sickle cell anemia is a genetic disease caused by an autosomal recessive gene. If each parent carries one sickle cell

allele, what are the chances that their child will have sickle cell anemia?

one in four

two in four

three in four

no chance

Why do cells in all living things need energy?

4 rooms What must be true for natural selection to happen? O A. The system must not be in Hardy-Weinberg equilibrium. O B. The population must be below carrying capacity. O C. All organisms must have the same alleles. O D.

When fuel rods in the reactor core of a nuclear power plant melt due to exposure to too much heat, this is known as: a. nuclear meltdown c. nuclear fusion b. nuclear fission d. fuel rod fusion

Because the earth is curved? it receives different amounts of sunlight at different?

The major effect of genetic drift is ... A) a reduction in genetic variability. B) an increase in genetic variation to accommodate changes in abiotic conditions. C) no change in population size but an increase in favorable alleles.

Is 28.5 cm tall qualitative or quantitative data

What is the product of transcription and translation

Which of the following would be considered a benefit of overpopulation A the increase in genetic variation of a population B the exponential growth of a population C the exchange of genetic material between populations D the change in an ecosystem

Which degree of contusion is characterized by superficial and some deep tissue damage, mild to moderate weakness with no muscle spasm, moderate loss of function, ecchymosis and swelling, and decreased ROM?

How many chromosomes do humans have?