Define other sex determination systems,besides xy system, Biology

Assignment Help:

Besides the XY system are there other sex determination systems?

A few animals have a sex determination system different from the XY system such as 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 represented by X0).

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

In a different system, the haploid-diploid sex determination system, one of the sexes is represented by the fertilized diploid individual and the individual of the opposite sex is formed by parthenogenesis, being haploid (it occurs in bees and other insects).

 


Related Discussions:- Define other sex determination systems,besides xy system

Explain arthritis, Explain Arthritis Arthritis - Oral therapy with doxy...

Explain Arthritis Arthritis - Oral therapy with doxycycline or amoxicillin for 28 days is usually effective for treatment of Lyme arthritis. Patients who have not responded to

Viruses, what is the basic structure of a virus?

what is the basic structure of a virus?

Sketch structure of ethyl ammonium, Draw structure of ethyl ammonium with a...

Draw structure of ethyl ammonium with all carbons and hydrogens.

Determine the eukaryotic replication origins, Which of the following statem...

Which of the following statements is wrong regarding eukaryotic replication origins? A. More origins are licensed and initiated within embryonic cells than in adult cells. B

Define the stress response - nutrition during stress, Define the Stress Res...

Define the Stress Response - nutrition during stress? The terms trauma, stress, shock are very often used interchangeably and encompass a variety of conditions such as sepsis

Show the process of cell-to-cell communication, On the overall process of c...

On the overall process of cell-to-cell communication within the nervous system, what role does the Ca2+ play in the synapse? A) contributes in the biosynthesis of acetylcholine B)

Why degree of dispersion of protein solution is decreased, Degree of disper...

Degree of dispersion of protein solution is decreased. It is decreased because of certain reasons:- Association: refers to changes occuring at subunit or molecular leve

Valves of the heart, Pulmonary valve is surface marked at the sternal end o...

Pulmonary valve is surface marked at the sternal end of the left 3rd costal cartilage. Aortic valve is surface marked at the sternal margin of the left 3rd intercostal space. Mitra

Mr, Define animals

Define animals

Explain about the energy requirements in elderly, Explain about the Energy ...

Explain about the Energy Requirements in elderly? Based on the Benedict - Harris equation for men and women, the daily energy requirements can be calculated. For Men: 66 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