Question 1
Claire, a psychologist, observes a group of 9 year olds and a group of 13 year olds during recess at school in order to assess changes in playgroup preferences of boys and girls between these two ages. Claire's study uses a ________ design.
◦ cross-sectional
◦ longitudinal
◦ cross-sequential
◦ cross-longitudinal
Question 2
Dominique has inherited the disease sickle-cell anemia. What might that indicate about Dominique's parents?
◦ At least one of her parents has a recessive gene for sickle-cell anemia.
◦ Both of her parents have a recessive gene for sickle-cell anemia.
◦ Only one of her parents has a dominant gene for sickle-cell anemia.
◦ Both of her parents have a dominant gene for sickle-cell anemia.
General structure of a plant cell
The effects of germ-line versus somatic cell mutations.
The Cell Cycle
cell
Basal cell carcinoma is a local contraindication for massage.
animal cell