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

Explain nicotinamide nucleotides, Nicotinamide nucleotides These coenzy...

Nicotinamide nucleotides These coenzymes are derived from  the vitamin, niacin. They are of two  types, nicotinamide  adenine dinucleotide (NAD')  and nicotinamide adenine dinu

Describe chronic mr murmur in mr murmur, Describe Chronic MR Murmur in MR M...

Describe Chronic MR Murmur in MR Murmur ? Characteristic: Pan systolic murmur, often loudest at apex and radiates to axilla, may also be audible in back and over the entire pre

Water supply, A rural town in an established agricultural area with no pros...

A rural town in an established agricultural area with no prospects for extensive development is located along a river that is used as the source of water supply for the community.

History of quantitative impacts on biology, Show History of Quantitative Im...

Show History of Quantitative Impacts on Biology Quantitative threads have been woven into the fabric of biology since at least the late 19th century, when Malthus warned of the

Monitoring for infections, Monitoring for infections Many infections ar...

Monitoring for infections Many infections are common in diabetic patient. Most prominent are urinary tract infections. Others are skin problems (carbuncles), ear problems (otit

Rapport building of counselling process of diabetic patient, Q. Rapport Bui...

Q. Rapport Building of Counselling process of diabetic patient? 1. Rapport Building - Introduce yourself to the counsellee. - Get the introduction of counsellee. - Sit

Enumerate about the traumatic brain injuries, Enumerate about the Traumatic...

Enumerate about the Traumatic brain injuries Brain injury is a common result of automobile and industrial accidents and of war injuries. Brain injury can affect brain function

Prevent and control staphylococcal food poisoning, To prevent and control S...

To prevent and control Staphylococcal food poisoning: • Avoid contamination of foods • Kill organism by heating, refrigeration • Personnel hygiene • Adequate cookin

Dose-response extrapolation, Dose-response extrapolation In order to be...

Dose-response extrapolation In order to be compared to human exposure levels, the animal data need to be extrapolated to doses much lower than those studied. This extrapolation

Different osmotic pressures, Q. Can solutions with the same concentration o...

Q. Can solutions with the same concentration of diverse solutes have different osmotic pressures? The osmotic pressure of a solution does not depend on the nature of the solute

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