NR 203 Practice Exam with Accurate Answers.
Latest Edition
Every normal human body cell contains how many chromosomes?
23 pairs
23
46 pairs
about 1,000 - ✔✔23 pairs
Question pts
A genome is:
the entire packet of instructions that make a living organism.
a molecule of DNA.
the basic unit of heredity.
the manufacturer of protein. - ✔✔the entire packet of instructions that make a living organism.
a molecule of DNA.
A person's sex is determined by:
nurture during prenatal development.
the 23rd pair of chromosomes.
the first pair of chromosomes.
hormones released during prenatal development. - ✔✔the 23rd pair of chromosomes.
Phenotype refers to:
a person's total genetic inheritance.
the recessive genes a person carries.
the actual expression of traits such as appearance and behavior.
,the dominant genes a person carries. - ✔✔the actual expression of traits such as appearance
and behavior.
People with Down syndrome:
have a third chromosome in the 19th pair.
have a third chromosome in the 21st pair.
are missing a chromosome.
are missing two chromosomes. - ✔✔have a third chromosome in the 21st pair.
The four dimensions of parenting style are warmth, discipline, communication, and:
physical contact.
expectations for maturity.
trust.
supportiveness. - ✔✔expectations for maturity.
Authoritarian parents:
are affectionate with their children and often praise them.
allow children to question their decisions but punish misconduct.
seem aloof from their children.
make few maturity demands on their children. - ✔✔seem aloof from their children
A family's structure is likely to change over time because of:
divorce.
relocation to another city.
a million dollar inheritance.
a new house. - ✔✔divorce
, Compared with single-parent homes, two-parent homes usually have:
higher moral values.
higher income.
fewer children.
better discipline. - ✔✔higher income
The "age of viability" refers to the point when the preterm newborn:
can survive.
begins to move.
will survive.
has developed all its major organs. - ✔✔can survive
A teratogen is:
damage sustained to the placenta.
a substance or a condition that can increase the risk of prenatal abnormalities.
a cell with extra chromosomes.
waste products from the embryo. - ✔✔a substance or a condition that can increase the risk of
prenatal abnormalities.
Since genes are known to affect the chance of neural-tube defects, pregnant women are urged
to begin taking vitamins with folic acid:
before becoming pregnant.
as soon as they learn they are pregnant.
during the first trimester.
during the second trimester. - ✔✔before becoming pregnant
The best policy regarding prescription drugs during pregnancy is:
avoid taking any medicines, because all do serious damage.
Latest Edition
Every normal human body cell contains how many chromosomes?
23 pairs
23
46 pairs
about 1,000 - ✔✔23 pairs
Question pts
A genome is:
the entire packet of instructions that make a living organism.
a molecule of DNA.
the basic unit of heredity.
the manufacturer of protein. - ✔✔the entire packet of instructions that make a living organism.
a molecule of DNA.
A person's sex is determined by:
nurture during prenatal development.
the 23rd pair of chromosomes.
the first pair of chromosomes.
hormones released during prenatal development. - ✔✔the 23rd pair of chromosomes.
Phenotype refers to:
a person's total genetic inheritance.
the recessive genes a person carries.
the actual expression of traits such as appearance and behavior.
,the dominant genes a person carries. - ✔✔the actual expression of traits such as appearance
and behavior.
People with Down syndrome:
have a third chromosome in the 19th pair.
have a third chromosome in the 21st pair.
are missing a chromosome.
are missing two chromosomes. - ✔✔have a third chromosome in the 21st pair.
The four dimensions of parenting style are warmth, discipline, communication, and:
physical contact.
expectations for maturity.
trust.
supportiveness. - ✔✔expectations for maturity.
Authoritarian parents:
are affectionate with their children and often praise them.
allow children to question their decisions but punish misconduct.
seem aloof from their children.
make few maturity demands on their children. - ✔✔seem aloof from their children
A family's structure is likely to change over time because of:
divorce.
relocation to another city.
a million dollar inheritance.
a new house. - ✔✔divorce
, Compared with single-parent homes, two-parent homes usually have:
higher moral values.
higher income.
fewer children.
better discipline. - ✔✔higher income
The "age of viability" refers to the point when the preterm newborn:
can survive.
begins to move.
will survive.
has developed all its major organs. - ✔✔can survive
A teratogen is:
damage sustained to the placenta.
a substance or a condition that can increase the risk of prenatal abnormalities.
a cell with extra chromosomes.
waste products from the embryo. - ✔✔a substance or a condition that can increase the risk of
prenatal abnormalities.
Since genes are known to affect the chance of neural-tube defects, pregnant women are urged
to begin taking vitamins with folic acid:
before becoming pregnant.
as soon as they learn they are pregnant.
during the first trimester.
during the second trimester. - ✔✔before becoming pregnant
The best policy regarding prescription drugs during pregnancy is:
avoid taking any medicines, because all do serious damage.
