3. A child is diagnosed with sickle cell disease, a genetic blood disorder. Which of the following is
true about the mutation that occurred?
A. The mutation produced a harmful effect.
B. The mutation is due to the environment.
COC. The mutation did not affect the child,
D. The mutation produced a beneficial effect.

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?