Describe about sex determination systems, Biology

Assignment Help:

Besides the XY system are there other sex determination systems?

Some animals have a sex determination system dissimilar from the XY system.

The X0 system is the sex determination system of many insects; in this system the females are XX and the males have only one X chromosome (a conditioned shown by X0).

In birds, in some fishes and in lepidopterae (butterflies) insects the sex determination is made by the ZW system; in this system females are ZW and males are ZZ.

 


Related Discussions:- Describe about sex determination systems

Testing a leaf for statch, State four steps to be followed to test for star...

State four steps to be followed to test for starch in a leaf

Explain the frank furcal perforation, Explain the Frank Furcal Perforation ...

Explain the Frank Furcal Perforation a) Coronal perforation at the pulpal floor of multirooted tooth. b) Due to excessive deepening at the pulpal floor during access perfora

What are natural active immunization, What are natural active immunization ...

What are natural active immunization and artificial active immunization? Natural active immunization is that in which a last natural infection induces the primary immune respon

Determine what the abnormal levels of afp signal, Determine what the abnorm...

Determine what the abnormal levels of AFP signal Abnormal levels of AFP may signal the following: Open neural tube Defect (ONTD) Down syndrome Other chromosoma1

Under nourished persons - nutritional intervention using mna, Define Under ...

Define Under nourished persons - nutritional intervention using MNA? An MNA score below 17 indicates that the patient is suffering from under nutrition.  Thus in this situatio

Chromosome partitioning depends on polymerization state, Chromosome partiti...

Chromosome partitioning depends on changes in the polymerization state of bacterial proteins that are functionally analogous to what eukaryotic protein?

The cross between a tall pea plant and a short pea plant, In peas, tall pla...

In peas, tall plants are dominant to short plants. A cross between a tall pea plant and a short pea plant results in half the progeny being tall, and the other half being short. Th

Do we know what causes mental illnesses or how to treat them, Do we know wh...

Do we know what causes mental illnesses, or how best to treat them? Mental illnesses take various forms: debilitating sadness in depression; uncontrollable repetitive actions i

Categories of secondary inductions, Categories of Secondary Inductions ...

Categories of Secondary Inductions The secondary inductions are categorized into two types. 1) Instructive Interaction : In such type of an interaction the inducing tissue

How do you verify that a certain gene encodes a certain prot, For homework,...

For homework, I had to prove that a certain catalyst was a protein, then tell how I would purify the protein, then tell how I would clone a human chromosomal region that contains t

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