Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/6

Click to flip

6 Cards in this Set

  • Front
  • Back
2 types of twins
-Monozygotic
-Dizygotic
Which type of twin is fraternal?
Dizygotic
Which type of twin can develop in one of two ways?
Monozygotes
How do Dizygotic twins HAVE to develop?
With individual placentas, chorions, and amniotic sacs.
How can monozygotic twins develop in addition to having 2 completely separate wombs?
By having 2 amniotic sacs but in 1 placenta and 1 chorion
What has to happen for monozygotic twins to share a placenta and chorion?
The zygote splits evenly