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 failing implant and biologic failure, Explain Failing implant and b...

Explain Failing implant and biologic failure Failing implant : An implant that is progressively losing bone but is clinically stable (firm) can be defined as failing. Bio

How hiv infection is mainly spread, It is mostly spread by sexual contact, ...

It is mostly spread by sexual contact, blood transfers and from HIV infected mother to child.

Describe briefly about the type 1 diabetes, Describe Briefly about the Type...

Describe Briefly about the Type 1 Diabetes? In people with normal weight, Type1 Diabetes is not a major cause of death but it is an important contributor to morbidity and morta

What are food hydrocolloids, What are food hydrocolloids? Food hydroco...

What are food hydrocolloids? Food hydrocolloids are hydrophilic polymers of vegetable, animal, microbial or synthetic origin that generally contain many hydroxyl groups and ma

Types of mental disorder, TYPES OF MENTAL DISORDER - 1 .       Psycho...

TYPES OF MENTAL DISORDER - 1 .       Psychosis 2 .       Neurosis 3.       Personality & character disorders 1 .       PSYCHOSIS - It effects mental capa

What is passive transport , The passive transport of molecules across a me...

The passive transport of molecules across a membrane does not require an input of metabolic energy. Rate of the diffusion or transport is proportional to the concentration gradient

N-terminal cysteine amino acid , Below is the N-terminus of an open reading...

Below is the N-terminus of an open reading frame of a gene that has been cloned into the E. coli expression plasmid pTrcHis.  ATGTCTCTACCTCAGAGCAGGTGGGTGGCATGTTTCAGTATTGAGGGAATT

Whatever is complementary to this, What does it mean when a plasmid is clea...

What does it mean when a plasmid is cleaved with Hind III and Sca I? Does that mean that it opens up at those two locations and I have to insert whatever is complementary to it?

Define criteria for assessment of vitamin b12 status, Define Criteria for A...

Define Criteria for Assessment of Vitamin B 12 Status? Low serum or plasma levels of vitamin B 12 should be the first indication of poor  status and this could be confirmed

What is lactate, What is Lactate Lactate is transported to  the liver...

What is Lactate Lactate is transported to  the liver in  the Cori cycle (lactic  acid cycle)  and is converted to pyruvate. Hepatic gluconeogenesis then converts  lactate  ba

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