Pregnancy

• What factors affect fertility in females?

  Age, body weight, smoking, diet, cycle timing
• What is the female sex cell called?

  Egg or ovum
• What is the male sex cell called?

  Sperm
• How many chromosomes do gametes have?

  23 chromosomes
• Where are chromosomes found?

  In the nucleus
• Which parent determines the sex of the offspring?

  The male parent (XY)
• What is fertilization?

  Fusing of egg and sperm nucleus
• Where does fertilization occur?

  In the Fallopian tube
• What is the name given to the fused egg and sperm?

  Zygote
• What does haploid mean?

  One set of chromosomes
• What does diploid mean?

  Full set/two sets of chromosomes
• What is mitosis?

  Forming new body cells
• What is meiosis?

  Produces gametes (sex cells)
• What is another term for fertilization?

  Conception
• What happens after fertilization?

  Mitosis occurs
• What is the process of fertilization?

  • Egg and sperm nuclei fuse
  • Forms a zygote
  • Occurs in the Fallopian tube
• What is a blastocyst?

  A cluster of dividing cells from a fertilized egg
• When does the blastocyst form after fertilization?

  About five to six days after
• What type of cell division produces egg cells?

  Meiosis
• What type of cell division occurs after fertilization?

  Mitosis
• What happens as soon as the sperm enters the egg?

  The zygote divides rapidly
• How long does it take for the zygote to mature enough to implant?

  About eight days