eukaryotic cell
A eukaryotic cell is undergoing DNA replication. In which region of the cell would most of the genetic information be contained? a. Mitochondria b. Ribosome c. Nucleolus d. Nucleus
mona
albinism based on skin, eye, and hair appearance
A newborn male is diagnosed with albinism based on skin, eye, and hair appearance. Which finding will support this diagnosis? Increased melanin Increased hemoproteins Inability to convert tyrosine to DOPA (3,4 dihydroxyphenylalanine) Inability to convert bile to bilirubin
factors for Down syndrome
A patient wants to know the risk factors for Down syndrome. What is the nurse’s best response? a. Fetal exposure to mutagens in the uterus b. Increased paternal age c. Family history of Down syndrome d. Pregnancy in women over age 35
movement of fluid across the arterial end of capillary membranes into the interstitial fluid surrounding the capillary is called
A nurse is discussing the movement of fluid across the arterial end of capillary membranes into the interstitial fluid surrounding the capillary. Which process of fluid movement is the nurse describing? a. Hydrostatic pressure b. Osmosis c. Diffusion d. Active transport
neurofibromatosis
An aide asks the nurse why people who have neurofibromatosis will show varying degrees of the disease. Which genetic principle should the nurse explain to the aide? a. Penetrance b. Expressivity c. Dominance d. Recessiveness
role of cytokines in cell reproduction
What is the role of cytokines in cell reproduction? a. Provide growth factor for tissue growth and development b. Block progress of cell reproduction through the cell cycle c. Restrain cell growth and development d. Provide nutrients for cell growth and development
The ion transporter that moves Na+ and Ca2+ simultaneously in the same direction is an example of
The ion transporter that moves Na+ and Ca2+ simultaneously in the same direction is an example of which of the following types of transport? a. Biport b. Uniport c. Antiport d. Symport
predominant extracellular cation
The nurse would be correct in identifying the predominant extracellular cation as: a. Sodium b. Potassium c. Chloride d. Glucose
distinguish aging from diseases
What principle should the nurse remember when trying to distinguish aging from diseases? a. It is difficult to tell the difference because both processes are believed to result from cell injury. b. It is easy to tell normal processes from abnormal processes. c. Disease, unlike aging, has a genetic component. d. Aging is defined as … Read more
Cystic fibrosis is caused by
When a patient asks what causes cystic fibrosis, how should the nurse respond? Cystic fibrosis is caused by an _____ gene. a. X-linked dominant b. X-linked recessive c. Autosomal dominant d. Autosomal recessive