The nurse is caring for a man , 79 years of age, who was admitted for hip replacement. He visits with the nurse every chance he gets, he seems lonely. He tells the nurse his wife died two years ago. He has children in nearby cities and has nine grandchildren. He says his life has been good and he is content, even though he misses his wife.  The nurse assesses him for developmental issues and identifies he has met which of Erikson’s stages of development?

Older adults tend to experience decreased blood vessel elasticity that predisposes them to hypertension.  

 Place the four stages of Piaget’s Stages of Cognitive Development in order from first to last.

The process of DNA replication is semiconservative. This means that a replicated chromosome is composed of:

What is the polarity of the nucleic acid strand at the arrow (and contained within the black circle)?  The purple jelly-bean shaped molecules is DNA polymerase.

An actively dividing cell culture is grown in a medium containing radioactive thymine (indicated with a T*). After all the thymine is labeled, the cells are transferred to a medium containing nonradioactive thymine (T). Following one round of DNA replication in the nonradioactive medium, the DNA is analyzed. Which of the following sequences could represent this DNA?

Which of the following is the complementary DNA strand to this strand of DNA? DNA:  5′ TTGTATCGTA 3′

Biological males are more often affected by sex-linked traits than females because _________________________________.

What is the blood type shown here?

Which of these is NOT a type of muscle?