Describe about sex determination systems, Biology

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.

 

Posted Date: 7/18/2013 6:53:40 AM | Location : United States







Related Discussions:- Describe about sex determination systems, Assignment Help, Ask Question on Describe about sex determination systems, Get Answer, Expert's Help, Describe about sex determination systems Discussions

Write discussion on Describe about sex determination systems
Your posts are moderated
Related Questions
URINARY BLADDER - Pear shaped sac like. Situated in pelvic region of abdominal cavity. Ventrally placed. Lined by transitional epithelum. Detrusor muscle i.e. to expell out

Select the processes assist in the maintenance of high levels of dissolved solutes in the interstitial spaces of the kidney medulla? A. Net flux of sodium ions from intracellul

Monitoring of risk management Assessment of effectiveness  of measures taken, and review risk  management  and/or assessment,  as  necessary. The outcome of the risk evaluation

Which of the following is TRUE about the properties of aqueous solutions? Select one: a. A pH change from 5.0 to 6.0 reflects an increase in the hydroxide ion concentration (

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What are the inheritance and dominance patterns of the Rh blood system? An inheritance pattern of the Rh blood system is autosomal dominant that is the heterozygous manifests a

Pathophysiolog y   Normally the platelets are formed from megakaryocytes (stem cells) in the.  bone marrow. These cells mature, fragment and are released in  the blood strea

Analytic Characters - Nature and Structure of Community As you know a community has its own characteristics. Which are not shown by its individual component species. These cha

Define Historical example of virulence? The "classical dogma" of epidemiologists was that pathogens all the time evolve in the direction of lower virulence, eventually becoming