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

Excretion in animal, Excretio n I n  Animal To give out nitrogenous...

Excretio n I n  Animal To give out nitrogenous waste products after oxidation of food is excretion. EXCRE T O R Y MATERIALS - 1 .      AMMONIA - Animals are

Treatment of diabetic ketoacidosis, Q. Treatment of diabetic ketoacidosis? ...

Q. Treatment of diabetic ketoacidosis? The components of treatment of NKHDC are: 1) control of water loss. 2) control of sugar using insulin. 3) adjust electrolytes li

Dry stigma - category of stigma, Dry Stigma - Category of Stigma The C...

Dry Stigma - Category of Stigma The Cotton (Gossypium hirsutum) stigma is covered with long unicellular hairs. At the time of pollination, the stigmatic hairs show a distinct

Explain what is light microscope - microscopy, Explain what is Light Micros...

Explain what is Light Microscope - Microscopy Modern light microscopes are compound microscopes. Here the magnified image formed by the objective lens is further enlarged by on

What is ocean shorelines, Q. What is Ocean shorelines? Ocean shorelines...

Q. What is Ocean shorelines? Ocean shorelines include rocky coasts and sandy beaches that are particularly rich in diverse life forms. Rocky shorelines support a diversity of o

What are nymph and imago, What are nymph and imago? Nymphs are larvae o...

What are nymph and imago? Nymphs are larvae of hemimetabolic insects (like grasshoppers). They are very same to the adult insect although smaller. In holometabolic insects (lik

Define about the sporocyst larva, Define about the Sporocyst Larva? Sp...

Define about the Sporocyst Larva? Sporocyst is the second larval stage in the life cycle of F. hepatica. It develops from the miracidium larva within the pulmonary chamber of

Theories of ageing, THEORIES OF AGEING - 1 .       Compromise theory....

THEORIES OF AGEING - 1 .       Compromise theory. 2 .        Wear & tear theory. 3 .       Somatic mutation theory. 4 .       Immunity theory - Thymus becom

Explain divisions of the angiosperms, Q. What are the two divisions of the ...

Q. What are the two divisions of the angiosperms? The angiosperms are divided into dicotyledonous and monocotyledonous.

Role of private sector in health care - competition, Role of Private Sector...

Role of Private Sector in Health Care - Competition When the private sector is driven by competition it tends to be more efficient. With competition, benefits like cost reduct

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