Chapter 27 - Human Development And Heredity

25 Questions | Total Attempts: 668

SettingsSettingsSettings
Please wait...
Human Quizzes & Trivia

Questions and Answers
  • 1. 
    Segments of a DNA strand that carry the code for a specific trait, such as eye color
    • A. 

      Sex-linked trait

    • B. 

      Autosomes

    • C. 

      Sex chromosomes

    • D. 

      Gene

  • 2. 
    Twenty-two pairs (numbered 1 to 22)
    • A. 

      Autosomes

    • B. 

      Sex chromosomes

    • C. 

      Genes

    • D. 

      Sex-linked trait

  • 3. 
    X and Y chromosomes
    • A. 

      Sex-linked trait

    • B. 

      Sex chromosomes

    • C. 

      Genes

    • D. 

      Autosomes

  • 4. 
    Any trait that is carried on an X or Y chromosome
    • A. 

      Sex chromosomes

    • B. 

      Autosomes

    • C. 

      Sex-linked trait

    • D. 

      Genes

  • 5. 
    A change in the genetic code that may express itself as a change in a particular trait
    • A. 

      Genes

    • B. 

      Mutation

    • C. 

      Sex chromosomes

    • D. 

      Autosomes

  • 6. 
    The fertilized ovum
    • A. 

      Trophoblasts

    • B. 

      Embryo

    • C. 

      Zygote

    • D. 

      Fetus

  • 7. 
    Cells that secrete hCG
    • A. 

      Trophoblasts

    • B. 

      Parturition

    • C. 

      Implantation

    • D. 

      Zygote

  • 8. 
    A zygote-making event
    • A. 

      Zygote

    • B. 

      Embryo

    • C. 

      Implantation

    • D. 

      Fertilization

  • 9. 
    The site where Baby breathes, eats, and excretes
    • A. 

      Parturition

    • B. 

      Placenta

    • C. 

      Umbilical cord

    • D. 

      Primary germ layers

  • 10. 
    Baby's lifeline; contains the umbilical blood vessels
    • A. 

      Trophoblasts

    • B. 

      Placenta

    • C. 

      Umbilical cord

    • D. 

      Implantation

  • 11. 
    Process whereby the blastocyst baby-to-be burrows into the endometrium
    • A. 

      Implantation

    • B. 

      Fertilization

    • C. 

      Parturition

    • D. 

      Trophoblasts

  • 12. 
    The birth process
    • A. 

      Trophoblasts

    • B. 

      Parturition

    • C. 

      Embryo

    • D. 

      Primary germ layers

  • 13. 
    Endoderm, mesoderm, and ectoderm
    • A. 

      Umbilical cord

    • B. 

      Primary germ layers

    • C. 

      Placenta

    • D. 

      Fetus

  • 14. 
    Baby's name from 9 weeks to birth
    • A. 

      Embryo

    • B. 

      Fetus

    • C. 

      Trophoblasts

    • D. 

      Zygote

  • 15. 
    Hormone that stimulates the mammary glands to make milk
    • A. 

      HCG

    • B. 

      Prolactin

    • C. 

      Oxytocin

    • D. 

      Aldosterone

  • 16. 
    Posterior pituitary hormone involved in the milk let-down reflex
    • A. 

      HCG

    • B. 

      Prolactin

    • C. 

      Oxytocin

    • D. 

      Aldosterone

  • 17. 
    Hormone that sustains the corpus luteum
    • A. 

      HcG

    • B. 

      Prolactin

    • C. 

      Oxytocin

    • D. 

      Aldosterone

  • 18. 
    Hormone that stimulates the contraction of the myometrium
    • A. 

      HCG

    • B. 

      Prolactin

    • C. 

      Oxytocin

    • D. 

      Aldosterone

  • 19. 
    Secretion of this hormone continues at a high level for about 2 months and then steadily declines as the placenta takes over
    • A. 

      Hcg

    • B. 

      Prolactin

    • C. 

      Oxytocin

    • D. 

      Aldosterone

  • 20. 
    Hormone that stimulates Na+ reabsorption and expands blood volume during pregnancy
    • A. 

      HCG

    • B. 

      Prolactin

    • C. 

      Oxytocin

    • D. 

      Aldoesterone

  • 21. 
    Implantation
    • A. 

      Normally occurs within the fallopian tubes

    • B. 

      Is achieved by the morula

    • C. 

      Is a uterine event achieved by the blastocyst

    • D. 

      Occurs within the ovaries

  • 22. 
    Human chorionic gonadotropin (hCG)
    • A. 

      Promotes the maturation of the egg

    • B. 

      Is responsible for female characteristics

    • C. 

      Maintains the corpus luteum

    • D. 

      Promotes the transformation of the corpus luteum into the corpus albicians

  • 23. 
    Trophoblastic cells
    • A. 

      Secrete oxytocin

    • B. 

      Are responsible for the milk let-down reflex

    • C. 

      Assist with implantation

    • D. 

      Are incorporated within the grafian folic

  • 24. 
    The morula
    • A. 

      Only formed if there is an ectopic pregnancy

    • B. 

      Is the unfertilized ovum that gets discharged with the menstrual blood

    • C. 

      Refers to the pre-embryonic cluster of cells

    • D. 

      Spends its life embedded within the endometrium

  • 25. 
    Which of the following is least true of or associated with the placenta?
    • A. 

      Nourishes the zygote as it matures into the morula

    • B. 

      Is the site at which Baby-to-be breathes

    • C. 

      Is very vascular

    • D. 

      Replaces the glandular secretion of the corpus luteum