FREE PSYCHOLOGY AND STUDY GAMES ABOUT

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FREE PSYCHOLOGY AND STUDY GAMES ABOUT

CH9LIFEDEVELOPMENT EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -31 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: A unit of DNA on a chromosome that encodes instructions for making a

particular protein molecule is the definition of:

Answer:

a gene

Question 2: Which of the following is TRUE of the placenta?

Answer:

It prevents the mother's blood from mixing with the blood of the developing embryo and fetus.Question 3: Janeen touches her newborn's cheek. Her baby turns toward Janeen's hand and opens her mouth. Janeen has triggered which reflex?

Answer:

The rooting reflex Question 4: The fetal brain is constantly changing, forming as many as 2 million synaptic connections per second. By the ____ month of prenatal development, the fetus has all the brain cells it will have at birth.

Answer:

Fifth

Question 5: Which of the following is NOT listed as important in considering the relationship between genotype and phenotype?

Answer:

Epigenetic changes determine how an individual's genetic blueprint directs and controls all aspects of development as it unfolds over the lifespan.Question 6: Shannon is in the seventh week of her pregnancy. In terms of prenatal development, Shannon's pregnancy is in the ____ period.

Answer:

Embryonic Question 7: Sarah gave birth to a full-term healthy baby boy who weighed just over 9 pounds.Assuming that the infant is normal, his brain will be about ____ the size of an adult human brain and will weigh about ____.

Answer:

One-quarter Question 8: When does a fetus double in weight, gaining an additional three to four pounds of body fat?

Answer:

During the last two months of the fetal period Question 9: Unlike Donna, who usually gets a nice tan when exposed to sunlight, Derek has a tendency to sunburn easily. Donna and Derek obviously have different sensitivities to the same environmental factor. This example illustrates their different ____.

Answer:

Genetic predispositions Question 10: Two crucial factors in the relationship between genotype and phenotype are

Answer:

interactions among genes, and interactions between genotype and environmental influences.Question 11: A gene encodes the instructions for:

Answer:

a specific combination of amino acids that form a particular protein molecule.

Question 12: Heather is in her fifth month of a healthy pregnancy and sometimes she can feel

the fetus moving, a common experience during this period called:

Answer:

quickening Question 13: Because different genotypes react differently to environmental factors, psychologists and other scientists speak of ____ to develop in a particular way.

Answer:

The genetic predisposition Question 14: During the embryonic period, the:

Answer:

organs and major systems of the body form Question 15: During the germinal period:

Answer:

the zygote becomes implanted on the mother's uterine wall.

Question 16: Which of the following BEST describes a gene?

Answer:

a unit of DNA on a chromosome that encodes instructions for making a particular protein.Question 17: As a general rule, the greatest vulnerability to ____ occurs during the ____ period of prenatal development

Answer:

teratogens Question 18: People with a particular genetic configuration will be more or less sensitive to particular environmental factors. This is referred to as a person's ____ to develop in a particular way

Answer:

genetic predisposition

Question 19: As the neural tube expands during development, it develop cavities, called ____, that are found at the core of the fully developed brain and are filled with cerebrospinal fluid.

Answer:

Ventricles Question 20: In terms of development, a critical period:

Answer:

is a period during which a child is maximally sensitive to environmental influences.Question 21: In addition to interactions among genes, and between genotype and environmental influences, another crucial factor in the relationship between genotype and phenotype is:

Answer:

that genes can mutate or spontaneously change from one generation to the next.Question 22: One problem with the genotype-as-a-blueprint analogy is that:

Answer:

environmental factors influence the actual phenotype displayed.Question 23: Monika read in her textbook that during the peak periods of brain development in the prenatal period, new cells are being generated at the rate of ____ per minute.

Answer:

250,000

Question 24: Michelle has freckles. It is likely that she inherited:

Answer:

a dominant version of the "freckles" gene from either or both of her biological parents.Question 25: Developmental Psychologists divide the lifespan into:

Answer:

eight age-related stages of development

Question 26: Genes make up _____ of human DNA.

Answer:

Less than 2 percent