Davis Advantage Chapter 3 Practice
100% VERIFIED {2025-2026} VERSION
EXAMS 4 With Comprehensive
Questions and Well Elaborated
Correct Answers GRADED A+
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,A zygote will have _____ chromosomes, half from each parent.
a. 23
b. 2
c. 46
d. 42 - correct ans:46
Rationale: The total number of chromosomes in a zygote is 46
Margie, a new patient at her first OB visit, asks where fertilization occurs. What is your best answer as
her nurse?
a. Fertilization of the egg usually occurs in the uterus, and then the fertilized egg, or zygote, implants
into the uterine lining.
b. Fertilization of the egg occurs at the cervix immediately after the male ejaculates, then the ovum and
sperm go through nidation on the uterine wall
c.Fertilization of the egg takes place in the ampulla of the fallopian tube after sperm have traveled
through the uterus to the ovum.
d. Fertilization takes place in the fundibulum at the distal end of the fallopian tube, and then cilla move
the fertilized ovum, or zygote down to the uterus. - correct ans:Fertilization of the egg takes place in the
ampulla of the fallopian tube after sperm have traveled through the uterus to the ovum.
Rationale: Fertilization takes places in the ampulla of the fallopian tube, and then takes 3 to 4 days to
move down into the uterus.
Cleft palate and neural tube defects could be a result of what kind of inheritance?
a. Unifactorial
b. Multifactorial
c. Autosomal Dominant
d. X-Linked Recessive - correct ans:Multifactorial
, A multifactorial inheritance results from a combination of genetic and environmental factors. Severity of
the defect depends on the amount of environmental exposure and the number of genes involved.
Alex is a new OB patient who just found out she's pregnant and has questions about what she should
avoid during pregnancy. Which of the following should you counsel her to avoid? Select all that apply.
a. Unvaccinated children
b. Gardening
c. Trout
d. Vitamin C
e. A cup of morning coffee - correct ans:Unvaccinated children
Rationale: If Alex is rubella nonimmune and contracts rubella from an unvaccinated child, her baby could
have serious birth defects.
Gardening
Rationale: Lead, pesticides, and toxoplasmosis can all be found in soil.
Celia is 38 and 11 weeks pregnant. The doctor has recommended she have an alpha-fetoprotein (AFP)
level check. Why would this be recommended?
a. Celia is over 35 and has an increased risk of a chromosomal disorder.
b. Celia is 11 weeks pregnant. An AFP check should be performed on every patient at this gestational
age.
c. Celia may not be taking proper care of herself during her pregnancy, and the doctor is looking for
nutritional deficits.
d. Celia has a family history of hemophilia, and the AFP will let the doctor know if her baby has the
disease. - correct ans:Celia is over 35 and has an increased risk of a chromosomal disorder.
100% VERIFIED {2025-2026} VERSION
EXAMS 4 With Comprehensive
Questions and Well Elaborated
Correct Answers GRADED A+
Professional Academic Assistance Services
Services Offered
Proctored Exam Assistance
Online Class Management (Full Course Support)
Exam Preparation & Study Materials
Assignments and Coursework Support
Essays and Research Papers
Discussion Posts and Replies
,A zygote will have _____ chromosomes, half from each parent.
a. 23
b. 2
c. 46
d. 42 - correct ans:46
Rationale: The total number of chromosomes in a zygote is 46
Margie, a new patient at her first OB visit, asks where fertilization occurs. What is your best answer as
her nurse?
a. Fertilization of the egg usually occurs in the uterus, and then the fertilized egg, or zygote, implants
into the uterine lining.
b. Fertilization of the egg occurs at the cervix immediately after the male ejaculates, then the ovum and
sperm go through nidation on the uterine wall
c.Fertilization of the egg takes place in the ampulla of the fallopian tube after sperm have traveled
through the uterus to the ovum.
d. Fertilization takes place in the fundibulum at the distal end of the fallopian tube, and then cilla move
the fertilized ovum, or zygote down to the uterus. - correct ans:Fertilization of the egg takes place in the
ampulla of the fallopian tube after sperm have traveled through the uterus to the ovum.
Rationale: Fertilization takes places in the ampulla of the fallopian tube, and then takes 3 to 4 days to
move down into the uterus.
Cleft palate and neural tube defects could be a result of what kind of inheritance?
a. Unifactorial
b. Multifactorial
c. Autosomal Dominant
d. X-Linked Recessive - correct ans:Multifactorial
, A multifactorial inheritance results from a combination of genetic and environmental factors. Severity of
the defect depends on the amount of environmental exposure and the number of genes involved.
Alex is a new OB patient who just found out she's pregnant and has questions about what she should
avoid during pregnancy. Which of the following should you counsel her to avoid? Select all that apply.
a. Unvaccinated children
b. Gardening
c. Trout
d. Vitamin C
e. A cup of morning coffee - correct ans:Unvaccinated children
Rationale: If Alex is rubella nonimmune and contracts rubella from an unvaccinated child, her baby could
have serious birth defects.
Gardening
Rationale: Lead, pesticides, and toxoplasmosis can all be found in soil.
Celia is 38 and 11 weeks pregnant. The doctor has recommended she have an alpha-fetoprotein (AFP)
level check. Why would this be recommended?
a. Celia is over 35 and has an increased risk of a chromosomal disorder.
b. Celia is 11 weeks pregnant. An AFP check should be performed on every patient at this gestational
age.
c. Celia may not be taking proper care of herself during her pregnancy, and the doctor is looking for
nutritional deficits.
d. Celia has a family history of hemophilia, and the AFP will let the doctor know if her baby has the
disease. - correct ans:Celia is over 35 and has an increased risk of a chromosomal disorder.
