APSY 203 EXAM 2 QUESTIONS & ANSWERS
In the nature/nurture debate, those on the "nature" side would argue: - Answers - That
who we are is determined by our genetics.
Zaria and Kalvin recently received the results of the prenatal screening conducted for
their unborn baby. They were provided with a risk score. What does a risk score tell
expecting parents about their baby? - Answers - The probability of a birth defect being
present.
Conjoined twins are also which type of twin? - Answers - Monozygotic.
Which of the following describes an allele? - Answers - A specific version of a gene.
What is the primary focus of evolutionary psychology? - Answers - The ways in which
universal patterns of behavior and cognitive processes have evolved over time.
What is the underlying claim of gene-environment interaction? - Answers - Genetic
makeup determines a range of possible outcomes that may or may not occur depending
on the environment.
How do the chromosomes contained in a gamete differ from the chromosomes
contained in other normal human cells? - Answers - Gametes have 23 chromosomes,
while other normal human cells have 46.
What causes the most common chromosomal abnormality, called Trisomy 21? -
Answers - An extra chromosome on #21.
Scott is talking to his friends about what he has learned in his psychology class. They
want to hear more about the theory of evolution by natural selection. What should Scott
tell them is the main idea of the theory of evolution by natural selection? - Answers -
Organisms that are best suited for their environments will prevail in survival and
reproduction.
What are genes comprised of? - Answers - Sequences of DNA
How would the theory of evolution by natural selection explain the well-developed ability
of human beings to seek socialization and to socialize effectively? - Answers - It is an
ability that has developed over time because it promotes survival.
What do behavioral geneticists study? - Answers - Individual differences that occur
through the interaction of genes and the environment.
Why do most women choose to have general prenatal screening before deciding
whether or not to have more invasive testing? - Answers - Because invasive testing
, such as amniocentesis and CVS procedures can increase the risk of miscarriage and
fetal damage.
What is the defining feature of chromosomes? - Answers - They contain genetic
information from each parent.
Which of the following describes a difference between how monozygotic and dizygotic
twins develop? - Answers - Monozygotic twins come from a single zygote, while
dizygotic twins come from two zygotes.
According to the theory of evolution by natural selection, which of the following
statements would be true? - Answers - Mothers form a bond with their babies because
doing so facilitates successful development.
Normal human cells have ________ chromosomes while gametes have ________
chromosomes. - Answers - 46; 23
What is the difference between genotype and phenotype? - Answers - Genotype refers
to genetic makeup, while phenotype refers to inherited physical characteristics.
Which of the following statements accurately describes the term-34 relationship
between sexes and twin type? - Answers - Monozygotic twins are the same sex, while
dizygotic twins can be different sexes.
What do adoption studies compare? - Answers - Behavioral traits between biological
relatives and adopted relatives
What is the difference between sperm and an egg? - Answers - The sperm is the male
gamete, while the egg is the female gamete.
Which of the following describes the way in which genetic material is distributed
between twins? - Answers - Monozygotic twins share 100% of their genetic material.
What is the main goal of prenatal screening? - Answers - To detect problems with the
health of the zygote, embryo, or fetus.
Which of the following describes an effect of tobacco on an unborn baby? - Answers -
Reduced blood oxygen levels.
At which point during prenatal development are the internal organs developed fully
enough to allow the baby to survive outside the womb if born prematurely (age of
viability)? - Answers - 24 weeks.
What happens with gametes to create chromosomal abnormalities? - Answers - The
gametes do not divide evenly when they are forming.
In the nature/nurture debate, those on the "nature" side would argue: - Answers - That
who we are is determined by our genetics.
Zaria and Kalvin recently received the results of the prenatal screening conducted for
their unborn baby. They were provided with a risk score. What does a risk score tell
expecting parents about their baby? - Answers - The probability of a birth defect being
present.
Conjoined twins are also which type of twin? - Answers - Monozygotic.
Which of the following describes an allele? - Answers - A specific version of a gene.
What is the primary focus of evolutionary psychology? - Answers - The ways in which
universal patterns of behavior and cognitive processes have evolved over time.
What is the underlying claim of gene-environment interaction? - Answers - Genetic
makeup determines a range of possible outcomes that may or may not occur depending
on the environment.
How do the chromosomes contained in a gamete differ from the chromosomes
contained in other normal human cells? - Answers - Gametes have 23 chromosomes,
while other normal human cells have 46.
What causes the most common chromosomal abnormality, called Trisomy 21? -
Answers - An extra chromosome on #21.
Scott is talking to his friends about what he has learned in his psychology class. They
want to hear more about the theory of evolution by natural selection. What should Scott
tell them is the main idea of the theory of evolution by natural selection? - Answers -
Organisms that are best suited for their environments will prevail in survival and
reproduction.
What are genes comprised of? - Answers - Sequences of DNA
How would the theory of evolution by natural selection explain the well-developed ability
of human beings to seek socialization and to socialize effectively? - Answers - It is an
ability that has developed over time because it promotes survival.
What do behavioral geneticists study? - Answers - Individual differences that occur
through the interaction of genes and the environment.
Why do most women choose to have general prenatal screening before deciding
whether or not to have more invasive testing? - Answers - Because invasive testing
, such as amniocentesis and CVS procedures can increase the risk of miscarriage and
fetal damage.
What is the defining feature of chromosomes? - Answers - They contain genetic
information from each parent.
Which of the following describes a difference between how monozygotic and dizygotic
twins develop? - Answers - Monozygotic twins come from a single zygote, while
dizygotic twins come from two zygotes.
According to the theory of evolution by natural selection, which of the following
statements would be true? - Answers - Mothers form a bond with their babies because
doing so facilitates successful development.
Normal human cells have ________ chromosomes while gametes have ________
chromosomes. - Answers - 46; 23
What is the difference between genotype and phenotype? - Answers - Genotype refers
to genetic makeup, while phenotype refers to inherited physical characteristics.
Which of the following statements accurately describes the term-34 relationship
between sexes and twin type? - Answers - Monozygotic twins are the same sex, while
dizygotic twins can be different sexes.
What do adoption studies compare? - Answers - Behavioral traits between biological
relatives and adopted relatives
What is the difference between sperm and an egg? - Answers - The sperm is the male
gamete, while the egg is the female gamete.
Which of the following describes the way in which genetic material is distributed
between twins? - Answers - Monozygotic twins share 100% of their genetic material.
What is the main goal of prenatal screening? - Answers - To detect problems with the
health of the zygote, embryo, or fetus.
Which of the following describes an effect of tobacco on an unborn baby? - Answers -
Reduced blood oxygen levels.
At which point during prenatal development are the internal organs developed fully
enough to allow the baby to survive outside the womb if born prematurely (age of
viability)? - Answers - 24 weeks.
What happens with gametes to create chromosomal abnormalities? - Answers - The
gametes do not divide evenly when they are forming.
