1. Which of the following express a phenotype of an offspring?
A. A puppy of XXY allele.
B. A kitten of XX gametes.
C. An infant having XY gametes.
D. A dwarf fruit bearing mango tree.

2. Which of the following best describes the cell cycle?
A. Cells growth and development takes place during interphase while its reproduction takes place during mitotic phase.
B. Cells growth and development takes place during mitotic phase while its reproduction takes place during interphase
C. The nucleus of a cell divides during interphase while the cytoplasm of the cell divides during mitotic phase.
D. The nucleus of a cell divides during mitotic phase while the cytoplasm of the cell divides during interphase

3. Which organ systems is the digestive system functionally connected with?
A. respiratory, circulatory, & excretory
B. integumentary, muscular, & skeletal
C. reproductive, nervous, & lymphatic
D. endocrine, muscular, & respiratory