Twins

  • Citations
  • Add to My List
  • Text Size

  • Entry
  • Reader's Guide
  • Entries A-Z
  • Subject Index

  • Twins are a biological fact. As such, they occur in at least two different ways. One pattern involves one egg, fertilized by one sperm, which splits sometime during the first fourteen days after fertilization, thus producing monozygotic ...

    Looks like you do not have access to this content.

    Login

    Don’t know how to login?

    Click here for free trial login.

    • [0-9]
    • A
    • B
    • C
    • D
    • E
    • F
    • G
    • H
    • I
    • J
    • K
    • L
    • M
    • N
    • O
    • P
    • Q
    • R
    • S
    • T
    • U
    • V
    • W
    • X
    • Y
    • Z


      • Loading...
    Back to Top

    Copy and paste the following HTML into your website