An infant is born with a chromosomal abnormality caused by nondisjunction. The nurse would expect that this child has how many chromosomes?
1. 46
2. 45 or 47
3. 22 or 24
4. 21
2
Rationale 1: The number of chromosomes in normal disjunction is 46.
Rationale 2: Nondisjunction is the failure of paired chromosomes to separate during meiotic division. In humans this results in either one less or one more chromosome than normal.
Rationale 3: The gamete would have either 22 or 24 chromosomes, but the zygote would have a different number.
Rationale 4: A fetus with only 21 chromosomes would not be viable.
You might also like to view...
A nurse in the postanesthesia care unit (PACU) is caring for a 56-year-old male patient who had a hernia repair
The patient's blood pressure is now 164/92, he had no history of hypertension prior to surgery, and his preoperative blood pressure was 112/68. The nurse knows that hypertension following surgery is often related to: A) Dysrhythmias, blood loss, and hyperthermia B) Electrolyte imbalances and neurologic changes C) A parasympathetic reaction and low blood volumes D) Pain, hypoxia, or bladder distention, which all cause sympathetic stimulation
Gwen is going to have to have skin grafts on both her arms and part of her chest and face. Discuss the use of skin grafts
a. What are different types of skin grafts for burn victims? b. What other treatment goes along with the grafts?
A nurse is interviewing a client who is distressed over the loss of a job that the client has worked for 15 years. Which questions would best assist the nurse determining the client's appraisal of the situation? Select all that apply
A) What resources do you rely on in difficult times? B) Have you ever experienced a similar situation; if so, what did you do? C) Who do you think is to blame for this situation? D) What options are available to you at this time?
The preceptor has created a teaching plan about the concepts of health and wellness for a new nurse. Which statement by the nurse indicates an understanding of health?
A. "Health is a state of well-being and when the client feels good." B. "Health is a state of complete physical, mental, and social well-being." C. "Health is the absence of illness, disease, and symptoms." D. "Health is the state when a person is viewed as a holistic being."