What are twins, Biology

Assignment Help:

What are twins? Genetically what are the two types of twins that can be generated?

Twins are simultaneously generated (within the mother's uterus) offspring. Twins classify according to zygosity as monozygotic or as dizygotic twins.

Monozygotic twins, also called as identical twins, are those originated from one single fertilized ovum (therefore from one single zygote); monozygotic twins are genetically identical, i.e., they have identical genotypes and are necessarily of the same sex. Dizygotic twins, also called as fraternal twins, are those generated from two different ova fecundated by two dissimilar sperm cells; so they are not genetically identical and they are not necessarily of the similar sex.

 


Related Discussions:- What are twins

Planning and implementation of nursing care - anaemia, Planning of Nursing ...

Planning of Nursing Care   The goals of nursing care are:  Administer oral iron supplements and parenteral iron therapy.  Provide nutritional counselling and educate t

What is the difference among animal and bacterial cells, Concerning the pre...

Concerning the presence of the nucleus what is the difference among animal and bacterial cells? Animal cells (cells of living beings of the kingdom Animalia) have an interior m

What is excessive cantilever, Excessive Cantilever Cantilevers in impla...

Excessive Cantilever Cantilevers in implant dentistry are commonly used especially in the mandibular arch for edentulous patients receiving implant supported prosthesis. Cantil

Baby delivery, some deliveries of baby occur early na. y is it so?

some deliveries of baby occur early na. y is it so?

Antibiotics, ANTIBIOTICS - Chemicals produced by microorganism that ...

ANTIBIOTICS - Chemicals produced by microorganism that inhibit the growth of other microorganism. Such microorganism which produces the antibiotics are antibiont . Wh

Amphibia, describe general characters and classification of amphibia in bri...

describe general characters and classification of amphibia in brief

Fats, definition and explanation of fats

definition and explanation of fats

Explain procedure for detection of metanil yellow, Explain Procedure for De...

Explain Procedure for Detection of Metanil Yellow? Carry out the exercise following the steps enumerated herewith. 1. Suspend the food sample in water and shake vigorously.

Techniques of blood pressure recording, Precautions It is a common obs...

Precautions It is a common observation that BP recordings are variable when taken by different individuals. To decrease this variability it is important that certain precautio

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd