Which best describes the sex chromosomes in humans? a. females have one x and one y chromosome. b. males have two y chromosomes. c. males have two different chromosomes. d. males have two x chromosomes.

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an

Linda and julia are trying to determine whether their ideas are scientific or pseudoscientific. linda's idea is free of bias. julia's idea gives the same result when tested repeatedly. which statement is correct about linda and julia's idea?

Which statement best compares aerobic and anaerobic respiration