Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
+1 vote
2.5k views
in Biology by (670 points)

Please log in or register to answer this question.

2 Answers

+1 vote
by (670 points)

Twins form in one of two ways:

Identical twins : when a single fertilized egg splits into two  identical twins which look almost exactly alike and share the exact same genes are developed.

Non identical or Fraternal twins : it occurs when two, separate eggs are fertilized by two, separate sperm. Fraternal twins do not share the exact same genes.

#jsunil

0 votes
by (20.4k points)

There are couple of ways in which twins or multiples are formed. These are: 

Fraternal Twins

Multiple eggs are produced in some women as there is more than one ovulation. Both the eggs get fertilized with different sperms and you get twins. These twins are called fraternal twins. This is possible with or without fertility drugs. 

Identical Twins 

One egg is released which splits into two and in this way identical twins are formed. This also happens with or without fertility drugs. 

Conjoint Twins

The third way in which twins are formed is called conjoint twins in which twins are formed in the same way identical twins are formed. But at the time of split, the embryo does not get separated completely and this makes the twins develop attached to each other. 

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...