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PSYCH313 CH 2
Terms in this set (38)
Joseph is homozygous for normal blood cells. This means that he
has matching alleles.
Whose behavior best exemplifies eugenics?
Dr. Black, who allows only certain individuals to mate
The main reason for why teenage mothers tend to give birth to less healthy infants than mothers in their 20s is that the
tend to neither seek nor receive good prenatal care.
Which organism can truthfully state, "It is during my time that all body parts and organs are first put into place?"
How many of the following are potential teratogens: aspirin, nicotine, cocaine, and caffeine?
Because it involves prolonged physical effort, the process of childbirth is often referred to as involving stages of
A doctor could best illustrate the proximodistal principle by discussing the fact that
a baby can control its shoulder before it can control its fingers.
Which maternal characteristic is most strongly associated with giving birth to a baby with Down syndrome?
Higher maternal age
The point at which a zygote burrows into the uterine wall is referred to as
Which result would not support the idea that genes play a significant role in behavior?
Finding dizygotic twins to be more similar than monozygotic twins
What was the most critical lesson about teratogens learned from studies on the use of the drug DES by pregnant women?
Sometimes the effects of teratogens are not apparent until long after exposure.
Longitudinal research on Hawaiian children indicated that problems associated with low birth weight
could be overcome if the child was raised in a stable family environment.
Born 39 weeks after conception, Sasha weighs in at around 2 pounds. Given this information, Sasha is best defined as
full-term and extremely low birth weight.
As dizygotic twins, Jewel and Bjork
share about half of their genes.
Which statement concerning the sickle-cell trait is true?
Individuals with the trait have both a dominant and recessive allele for the disorder.
The concept that genotypes are not the only things that control traits involves the fact that
each genotype can produce a variety of phenotypes.
José, who was adopted at birth, is found to have personality characteristics more similar to his biological mom than to his adoptive mom. How should you interpret this data?
Personality characteristics are influenced by genes.
Prenatal development begins
By the time Debbie got to the hospital to deliver her child, the child had entered the vaginal opening. This means that Debbie was in the ____ stage of labor.
You are currently experiencing severe pain in your leg and go to your physician for a checkup. During the examination, your physician says, "The pain you are experiencing appears to be due to misshapen blood cells that are blocking the flow of oxygen to your leg." This would indicate that the most accurate diagnosis of your condition would be
Which individual with a genetic predisposition toward being extroverted is demonstrating successful niche-picking?
Wink, who is a game-show host
Whose mother most likely took thalidomide while pregnant?
Martin, who has deformed arms and legs
Hair and the nervous system develop during the embryonic period from cells contained in the ____ layer.
Dr. Fry has just been informed that his son has sickle-cell trait. As a knowledgeable physician, Dr. Fry would realize that his son's body is most likely to experience
serious oxygen deprivation
allows for an exchange of nutrients and waste.
What began as a single fertilized egg has just separated into two distinct eggs. This indicates the formation of ____ twins that has occurred during the ____ period of development.
If Agnieszka found out that she was conceived through in vitro fertilization, she would know for certain that
she was conceived in a Petri dish
The cutoff between normal and low birth weight is about ____ pounds.
While observing a special monitor, a physician tells an expectant mother, "As you can see, the legs and arms have just begun to emerge." From this description, you should realize that the two are looking at a(n)
Genotype is to phenotype as
chromosome pattern is to physical features
Genes and environments
interact dynamically throughout development.
Monozygotic is to dizygotic as
one egg is to two eggs.
Both AIDS and genital herpes
can be passed along to an infant as it passes through the birth canal.
_________ occurs when an individual intentionally seeks out an environment that matches characteristics driven by his or her genes.
The average child has approximately ____ genes.
A developing human that is traveling from a fallopian tube to the uterus would most accurately be described as a(n)
Jack and Jill are twins. Because he is a boy, Jack's parents encourage him to run. However, they discourage Jill from engaging in athletic activity. As a result, Jack is much faster at running up a hill than Jill. The difference in Jack and Jill's behavior is best explained by
nonshared environmental influences
Which process can best be explained by alleles?
The instructions for hair color come from two sources on the chromosome
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