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Discovery Series Introduction to Lifespan 1st Edition by Rathus Test Bank
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Discovery Series Introduction to Lifespan 1st Edition by Rathus Test Bank
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WITH ANSWERS
Discovery Series Introduction to Lifespan 1st Edition by Rathus Test Bank
Chapter 2: Beginnings
TRUE/FALSE
- A chromosome is a rod-shaped structure found within the nuclei of cells.
ANS: F PTS: 1 DIF: Blooms: Remember
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO1: Define chromosomes and genes MSC: TYPE: Easy
- The field of biology that studies heredity is called genetics.
ANS: T PTS: 1 DIF: Blooms: Remember
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO1: Define chromosomes and genes MSC: TYPE: Easy
- Each member of a pair of genes is termed a trait.
ANS: F PTS: 1 DIF: Blooms: Remember
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO4: Define dominant and recessive traits, and provide examples of each
MSC: TYPE: Easy
- Factorial problems stem from the interaction of heredity and environmental factors.
ANS: F PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO5: Discuss chromosomal disorders MSC: TYPE: Easy
- Cystic fibrosis is caused by a dominant gene.
ANS: F PTS: 1 DIF: Blooms: Remember
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO6: Discuss genetic disorders MSC: TYPE: Easy
- Genotypes are the actual sets of traits we exhibit that reflect both genetic and environmental influences.
ANS: F PTS: 1 DIF: Blooms: Remember
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO8: Differentiate between genotypes and phenotypes MSC: TYPE: Easy
- The Minnesota Study of Twins Reared Apart studied DZ twins reared in separate households.
ANS: F PTS: 1 DIF: Blooms: Apply
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO9: Explain how twin studies and adoption studies are used to sort out the effects of nature and nurture MSC: TYPE: Medium
- The endometrium is the inner lining of the uterus.
ANS: T PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook | Animation The Female Reproductive Organs, Online
OBJ: LO10: Describe the development and release of ova. MSC: TYPE: Easy
- Endometriosis has become fairly common among women who delay childbearing.
ANS: T PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook OBJ: LO13: Discuss infertility
MSC: TYPE: Easy
- Endometriosis can obstruct the fallopian tubes, where conception normally takes place.
ANS: T PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook OBJ: LO13: Discuss infertility
MSC: TYPE: Easy
- Surrogate mothers bring babies to term through other women who are fertile.
ANS: F PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook OBJ: LO13: Discuss infertility
MSC: TYPE: Easy
- Postimplantation genetic diagnosis was developed to detect genetic disorders, but it also reveals the sex of the embryo.
ANS: F PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO14: Discuss preimplantation genetic diagnosis MSC: TYPE: Medium
- Growth of the organ systems near the spine occurs earlier than growth of the extremities.
ANS: T PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO15: Describe the stages of prenatal development MSC: TYPE: Easy
- At approximately 21 days after implantation, three ridges appear in the embryo and fold to compose the neural tube, from which the nervous system will develop.
ANS: F PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO15: Describe the stages of prenatal development. MSC: TYPE: Difficult
- The mother usually feels the first fetal movements in the middle of the fourth month.
ANS: T PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO15: Describe the stages of prenatal development MSC: TYPE: Medium
- The fetus will probably not contract syphilis if an infected mother is treated with antibiotics before the fourth month of pregnancy.
ANS: T PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO16: Discuss nutrition in prenatal development MSC: TYPE: Easy
- Rh incompatibility occurs when a woman who does not have this factor and is thus Rh positive is carrying an Rh-negative fetus.
ANS: F PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO17: Explain what is meant by critical periods of vulnerability during prenatal development
MSC: TYPE: Difficult
- Vitamins have been shown to be completely safe for pregnant women to take.
ANS: F PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO16: Discuss nutrition in prenatal development MSC: TYPE: Medium
- During transition, the cervix is nearly fully dilated, and the head of the fetus begins to move into the vagina.
ANS: T PTS: 1 DIF: Blooms: Remember
REF: 2.3 Childbirth, Textbook | Video A Birth, Online
OBJ: LO20: Describe events that indicate that a baby is ready to be born
MSC: TYPE: Medium
- Cuban Americans have the lowest child mortality rate.
ANS: T PTS: 1 DIF: Blooms: Remember
REF: 2.3 Childbirth, Textbook | Reading Global Birthrates, Online
OBJ: LO25: Discuss global differences in maternal and child mortality.
MSC: TYPE: Medium
MULTIPLE CHOICE
- According to Figure 2.1 in the text, which of the following is the smallest unit?
| a. | cell | c. | nucleus |
| b. | chromosome | d. | DNA |
ANS: D PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO1: Define chromosomes and genes MSC: TYPE: Medium
- Which of the following utilizes partnering to create a DNA strand?
| a. | mitosis | c. | ovulation |
| b. | meiosis | d. | reduction division |
ANS: B PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO2: Describe mitosis and meiosis MSC: TYPE: Medium
- How can a genetic code be altered?
| a. | Through mitosis | c. | Through mutation |
| b. | Through meiosis | d. | Through reduction division |
ANS: C PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO2: Describe mitosis and meiosis MSC: TYPE: Medium
- David and Sharon just had a baby boy. Sharon jokes that David arranged a boy on purpose. The doctor laughs, and then explains that which of the following is ultimately responsible for the baby boys gender?
| a. | The 22nd pair of autosomes | c. | The 23rd pair of chromosomes |
| b. | The 46 pairs of chromosomes | d. | The 23 pairs of autosomes |
ANS: C PTS: 1 DIF: Blooms: Apply
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO2: Describe mitosis and meiosis MSC: TYPE: Medium
- Lisa is writing a research paper on twins and in the research process, finds out that which of the following women would be most likely to have twins?
| a. | A 25-year-old woman with twin cousins |
| b. | A 40 year-old woman with a mother who was a twin |
| c. | A 30-year-old woman with a father who was a twin |
| d. | A 35-year-old woman thinking about taking fertility drugs |
ANS: B PTS: 1 DIF: Blooms: Apply
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO3: Differentiate between identical and fraternal twins MSC: TYPE: Medium
- Kali and Kelly are identical twins. What caused this?
| a. | A single zygote split into two. |
| b. | A single zygote was fertilized twice. |
| c. | Two separate zygotes were fertilized by the same sperm. |
| d. | Two separate zygotes were fertilized at two separate times within the same month. |
ANS: A PTS: 1 DIF: Blooms: Analyze
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO3: Differentiate between identical and fraternal twins MSC: TYPE: Medium
- Which of the following would be an example of a dominant trait?
| a. | blonde hair | c. | red hair |
| b. | blue eyes | d. | brown eyes |
ANS: D PTS: 1 DIF: Blooms: Apply
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO4: Define dominant and recessive traits, and provide examples of each
MSC: TYPE: Medium
- If one parent has brown eyes, and the child has a recessive allele for blue eyes from both parents, what is likely to happen?
| a. | The child will have brown eyes. |
| b. | The child will have green eyes. |
| c. | The child will have blue eyes. |
| d. | The child will have either brown eyes or blue eyes. |
ANS: C PTS: 1 DIF: Blooms: Analyze
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO4: Define dominant and recessive traits, and provide examples of each
MSC: TYPE: Medium
- Which of the following is an example of a recessive trait?
| a. | Curly hair | c. | Lactose tolerance |
| b. | Type A blood | d. | Lack of dimples |
ANS: D PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO4: Define dominant and recessive traits, and provide examples of each
MSC: TYPE: Medium
- Which of the following reflects an abnormality somewhere in the first 22 pairs of autosomes?
| a. | Klinefelter syndrome | c. | Sex-linked syndrome |
| b. | Turner syndrome | d. | Down syndrome |
ANS: D PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO5: Discuss chromosomal disorders MSC: TYPE: Medium
- Which of the following causes Downs syndrome?
| a. | The 46 chromosomes | c. | An excess 23rd chromosome |
| b. | An excess 21st chromosome | d. | The 23rd chromosome |
ANS: B PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO5: Discuss chromosomal disorders MSC: TYPE: Medium
- Which of the following would be a disease that would occur through a dominant gene?
| a. | Phenylketonuria | c. | Sickle-cell anemia |
| b. | Huntingtons disease | d. | Tay-Sachs disease |
ANS: B PTS: 1 DIF: Blooms: Apply
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO6: Discuss genetic disorders MSC: TYPE: Medium
- Which of the following individuals is most likely to have sickle-cell anemia?
| a. | A Jewish child | c. | A White child |
| b. | An African American adult | d. | A Latin American adult |
ANS: B PTS: 1 DIF: Blooms: Apply
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO6: Discuss genetic disorders MSC: TYPE: Medium
- Which of the following would result in mental retardation after an excess of an amino acid?
| a. | Phenylketonuria | c. | Sickle-cell anemia |
| b. | Huntingtons disease | d. | Tay-Sachs disease |
ANS: A PTS: 1 DIF: Blooms: Apply
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO6: Discuss genetic disorders MSC: TYPE: Medium
- Which of the following genetic disorders results in respiratory complications and death in young adulthood?
| a. | Tay-Sachs disease | c. | Muscular dystrophy |
| b. | Cystic fibrosis | d. | Hemophilia |
ANS: B PTS: 1 DIF: Blooms: Apply
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO6: Discuss genetic disorders MSC: TYPE: Medium
- Which of the following individuals has the greatest chance of contracting a sex-linked genetic abnormality?
| a. | A male with a mother with muscular dystrophy |
| b. | A female with a mother with muscular dystrophy |
| c. | A male with a father with muscular dystrophy |
| d. | A female with a father with muscular dystrophy |
ANS: A PTS: 1 DIF: Blooms: Analyze
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO6: Discuss genetic disorders MSC: TYPE: Medium
- Which of the following would be a procedure that would be used on a pregnant woman over 40-years-old?
| a. | genetic counseling | c. | sonogram |
| b. | amniocentesis | d. | ultrasound |
ANS: B PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO7: Describe prenatal testing methods for chromosomal and genetic abnormalities
MSC: TYPE: Medium
- Angela and Greg would like to know the gender of their baby, but they want to do so as safely as possible. Which of the following procedures would you recommend?
| a. | amniocentesis | c. | ultrasound |
| b. | CVS | d. | genetic counseling |
ANS: C PTS: 1 DIF: Blooms: Analyze
REF: 2.1 Genetic Influences on Development, Textbook | Reading Sex Selection, Online
OBJ: LO7: Describe prenatal testing methods for chromosomal and genetic abnormalities
MSC: TYPE: Medium
- Which of the following is used sparingly as it carries the greatest risk of miscarriage?
| a. | CVS | c. | amniocentesis |
| b. | ultrasound | d. | early amniocentesis |
ANS: A PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO7: Describe prenatal testing methods for chromosomal and genetic abnormalities
MSC: TYPE: Medium
- Which of the following genetic diseases would not be revealed with a parental blood test before pregnancy?
| a. | Tay-Sachs disease | c. | Cystic fibrosis |
| b. | Huntingtons disease | d. | Sickle-cell anemia |
ANS: B PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO8: Differentiate between genotypes and phenotypes MSC: TYPE: Medium
- Pamelas father was a calm, quiet man. Pamela tends to be calm and quiet as well, unless she is playing soccer, her favorite sport. What does her aggressiveness on the field indicate?
| a. | The effects of her chromosomes | c. | The effects of her phenotypes |
| b. | The effects of her genotypes | d. | The effects of her environment |
ANS: C PTS: 1 DIF: Blooms: Evaluate
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO8: Differentiate between genotypes and phenotypes MSC: TYPE: Difficult
- Which of the following people would Ann be closest to genetically?
| a. | her grandmother | c. | her aunt |
| b. | her brother | d. | her cousin |
ANS: B PTS: 1 DIF: Blooms: Understand
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO8: Differentiate between genotypes and phenotypes MSC: TYPE: Medium
- Paul and Peter seem identical in almost every way. They have the same taste in music. They have the same facial expressions and features. They drive the same car, and they work in the same professional field. Since they did not grow up together, what explanation is there for this?
| a. | There is an environmental basis for their behaviors. |
| b. | They are dizygotic twins. |
| c. | They have a strong instinctive connection. |
| d. | There is a strong genetic basis for their behaviors. |
ANS: D PTS: 1 DIF: Blooms: Analyze
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO9: Explain how twin studies and adoption studies are used to sort out the effects of nature and nurture. MSC: TYPE: Difficult
- Who of the following would be more likely to share autism?
| a. | male siblings | c. | DZ twins |
| b. | female siblings | d. | MZ twins |
ANS: D PTS: 1 DIF: Blooms: Apply
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO9: Explain how twin studies and adoption studies are used to sort out the effects of nature and nurture MSC: TYPE: Medium
- Nancy and Sarah were separated at birth and raised in separate households. They did not have contact with each other and were not aware that they were twins. Researchers studied them to see if there were any similarities in their behaviors and traits. What is this type of research called?
| a. | twin studies | c. | kinship studies |
| b. | trait studies | d. | adoption studies |
ANS: A PTS: 1 DIF: Blooms: Analyze
REF: 2.1 Genetic Influences on Development, Textbook
OBJ: LO9: Explain how twin studies and adoption studies are used to sort out the effects of nature and nurture MSC: TYPE: Difficult
- How do sperm reach the ovum?
| a. | They travel randomly through the cervix and uterus to the fallopian tube with the released ovum. |
| b. | They follow the scent of released chemicals through the cervix to the fallopian tube containing a released ovum. |
| c. | They follow the scent of released chemicals through the fallopian tube to the cervix where the ovum has been released. |
| d. | They travel randomly through the fallopian tube to the cervix where the ovum has been released. |
ANS: B PTS: 1 DIF: Blooms: Analyze
REF: 2.2 Prenatal Development, Textbook
OBJ: LO10: Describe the development and release of ova MSC: TYPE: Difficult
- How many sperm cells are necessary to fertilize an ovum?
| a. | 1 | c. | 1,000 |
| b. | 100 | d. | 1,000,000 |
ANS: A PTS: 1 DIF: Blooms: Understand
REF: 2.2 Prenatal Development, Textbook
OBJ: LO10: Describe the development and release of ova MSC: TYPE: Easy
- What concept describes the time in which the sperm penetrates the ovum and unites with it?
| a. | conception | c. | endometrium |
| b. | fertility | d. | implantation |
ANS: A PTS: 1 DIF: Blooms: Apply
REF: 2.2 Prenatal Development, Textbook | Animation Stages of Conception, Online
OBJ: LO12: Define conception MSC: TYPE: Medium
- When are ova present in the female body?
| a. | At birth | c. | During puberty |
| b. | In childhood before puberty | d. | During menstruation |
ANS: A PTS: 1 DIF: Blooms: Understand
REF: 2.2 Prenatal Development, Textbook | Animation Stages of Conception, Online
OBJ: LO10: Describe the development and release of ova MSC: TYPE: Medium
- What is released during menstruation?
| a. | The unfertilized egg and the lining of the fallopian tube |
| b. | The unfertilized egg and the cilia |
| c. | The unfertilized egg and the lining of the ovaries |
| d. | The unfertilized egg and the lining of the uterus |
ANS: D PTS: 1 DIF: Blooms: Apply
REF: 2.2 Prenatal Development, Textbook | Animation Stages of Conception, Online
OBJ: LO10: Describe the development and release of ova MSC: TYPE: Medium
- What is one explanation for why more boys than girls are conceived?
| a. | The X sex chromosome swims faster than the Y sex chromosome. |
| b. | The Y sex chromosome swims faster than the X sex chromosome. |
| c. | There are more X sex chromosomes than Y sex chromosomes. |
| d. | There are more Y sex chromosomes than X sex chromosomes. |
ANS: B PTS: 1 DIF: Blooms: Apply
REF: 2.2 Prenatal Development, Textbook OBJ: LO12: Define conception
MSC: TYPE: Medium
- How do sperm cells develop?
| a. | Through meiosis, with the X sex chromosomes splitting from the Y sex chromosomes to form 23 chromosomes. |
| b. | Through meiosis, with the X sex chromosomes splitting from the Y sex chromosomes to form 23 pairs of chromosomes. |
| c. | Through mitosis, with the X sex chromosomes splitting from the Y sex chromosomes to form 23 chromosomes. |
| d. | Through mitosis, with the X sex chromosomes splitting from the Y sex chromosomes to form 23 pairs of chromosomes. |
ANS: A PTS: 1 DIF: Blooms: Analyze
REF: 2.2 Prenatal Development, Textbook
OBJ: LO11: Describe the development and travels of sperm MSC: TYPE: Medium
- Which of the following is an obstacle sperm face in attempting to reach the ovum?
| a. | Only a few viable sperm are ejaculated. |
| b. | Vaginal acidity kills many sperm. |
| c. | Most sperm travel randomly and do not go in the right direction. |
| d. | The cilia are designed to keep out foreign objects. |
ANS: B PTS: 1 DIF: Blooms: Analyze
REF: 2.2 Prenatal Development, Textbook
OBJ: LO11: Describe the development and travels of sperm MSC: TYPE: Difficult
- Why does only one sperm enter the ova?
| a. | A chemical is released to prevent others from entering. |
| b. | More than one sperm enter the ova but do not fertilize the egg. |
| c. | The ova only has room for one sperm. |
| d. | The chemical used to attract sperm ceases once one sperm enters the ova. |
ANS: A PTS: 1 DIF: Blooms: Analyze
REF: 2.2 Prenatal Development, Textbook
OBJ: LO11: Describe the development and travels of sperm MSC: TYPE: Difficult
- Adam and Maria have been trying to get pregnant for eight months. They are in your office and wonder when they will be able to go through infertility procedures. What do you advise?
| a. | Infertility is normally diagnosed after trying for six months. |
| b. | Infertility is normally diagnosed after trying for eight months. |
| c. | Infertility is normally diagnosed after trying for ten months. |
| d. | Infertility is normally diagnosed after trying for twelve months. |
ANS: D PTS: 1 DIF: Blooms: Analyze
REF: 2.2 Prenatal Development, Textbook OBJ: LO12: Define conception
MSC: TYPE: Difficult
- Which of the following would be one of the likeliest reasons for infertility in men?
| a. | diabetes | c. | medication |
| b. | sexually transmitted infection | d. | low sperm count |
ANS: D PTS: 1 DIF: Blooms: Understand
REF: 2.2 Prenatal Development, Textbook OBJ: LO13: Discuss infertility
MSC: TYPE: Medium
- Daniel and Sasha are very active and healthy. They eat right and exercise daily. Daniel often engages in long distance runs and then takes a hot bath before he and Sasha have sexual intercourse. When they visit a specialist about their inability to conceive, what is one issue that the physician will likely point out?
| a. | The warm water from the bath would help Sarah conceive. |
| b. | Sarah is probably exercising too much. |
| c. | Davids runs could be causing issues with conception. |
| d. | David needs to take a shower instead. |
ANS: C PTS: 1 DIF: Blooms: Analyze
REF: 2.2 Prenatal Development, Textbook OBJ: LO13: Discuss infertility
MSC: TYPE: Difficult
- What is one reason that fertility drugs can cause multiple births?
| a. | The ovum splits during conception. |
| b. | Ovulation permits ovum to remain viable for longer periods of time. |
| c. | The ovum splits after conception. |
| d. | Ovulation occurs more than once, ripening more than one ovum. |
ANS: D PTS: 1 DIF: Blooms: Apply
REF: 2.2 Prenatal Development, Textbook OBJ: LO13: Discuss infertility
MSC: TYPE: Medium
- Which of the following is a means of fertilizing the ovum by injecting larger amounts of sperm into the uterus?
| a. | motility | c. | in vitro fertilization |
| b. | artificial insemination | d. | donor in vitro fertilization |
ANS: B PTS: 1 DIF: Blooms: Understand
REF: 2.2 Prenatal Development, Textbook OBJ: LO13: Discuss infertility
MSC: TYPE: Medium
- What procedure is actually the mode that gave rise to the phrase test tube babies?
| a. | in vitro fertilization | c. | artificial insemination |
| b. | surrogate mothers | d. | adoption |
ANS: A PTS: 1 DIF: Blooms: Understand
REF: 2.2 Prenatal Development, Textbook
OBJ: LO14: Discuss preimplantation genetic diagnosis MSC: TYPE: Medium
- What occurs when ova are produced by someone other than the intended mother?
| a. | in vitro fertilization | c. | surrogacy |
| b. | donor IVF | d. | artificial insemination |
ANS: B PTS: 1 DIF: Blooms: Apply
REF: 2.2 Prenatal Development, Textbook
OBJ: LO14: Discuss preimplantation genetic diagnosis MSC: TYPE: Medium
- Which of the following helps couples select the gender of the child?
| a. | in vitro fertilization | c. | motility |
| b. | donor IVF | d. | preimplantation genetic diagnosis |
ANS: D PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook | Reading Sex Selection, Online
OBJ: LO14: Discuss preimplantation genetic diagnosis MSC: TYPE: Easy
- How long is a normal gestation period?
| a. | 260 days | c. | 280 days |
| b. | 270 days | d. | 290 days |
ANS: C PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO15: Describe the stages of prenatal development MSC: TYPE: Easy
- Which stage occurs around the third through eighth weeks of pregnancy?
| a. | gestation stage | c. | embryonic stage |
| b. | germinal stage | d. | fetal stage |
ANS: C PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO15: Describe the stages of prenatal development MSC: TYPE: Easy
- Where do cells begin to separate into groups that will eventually become different structures?
| a. | The embryonic disk | c. | The trophoblast |
| b. | The blastocyst | d. | The zygote |
ANS: B PTS: 1 DIF: Blooms: Remember
REF: 2.2 Prenatal Development, Textbook
OBJ: LO15: Describe the stages of prenatal development MSC: TYPE: Easy
- Why does the blastocyst implant on the uterine wall?
| a. | To maintain warmth | c. | To create the neural tube |
| b. | To form the zygote | d. | To provide nourishment |
ANS: D PTS: 1 DIF: Blooms: Understand
REF: 2.2 Prenatal Development, Textbook
OBJ: LO15: Describe the stages of prenatal development MSC: TYPE: Medium
- Which of the following forms the digestive and respiratory systems in the embryonic stage?
| a. | ectoderm | c. | endoderm |
| b. | neural tube | d. | mesoderm |
ANS: C PTS: 1 DIF: Blooms: Understand
REF: 2.2 Prenatal Development, Textbook
OBJ: LO15: Describe the stages of prenatal development MSC: TYPE: Difficult
- Which of the following develops into the reproductive
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