Chapter 27 - Human Development And Heredity
- 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
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