What is the inactivation of the x chromosome, Biology

Assignment Help:

What is the inactivation of the X chromosome? What is a Barr body?

Inactivation of the X chromosome is a phenomenon that happens in women. As women have two X chromosomes only one of them remains active and functional mixed to the chromatin whereas the other remains condensed and inactive.

In the similar woman in some cell lineages the functional X chromosome is the one from the father and in other cell lineages the functional chromosome is the X from the mother characterizing a condition called as mosaicism (related to the X chromosome).

Under the microscope the inactive X chromosome is seen as a granule generally in the periphery of the nucleus. This granule is called the Barr body.

Image Diversity: Barr body

 


Related Discussions:- What is the inactivation of the x chromosome

Transcription and processing of trna in eukaryotes, In the eukaryotes, the ...

In the eukaryotes, the transmit RNA genes exist as multiple copies and are transcribed by RNA polymerase III or RNA Pol III. As in prokaryotes, various tRNAs may be transcribed tog

Define nutrient needs and recommended dietary intake, Define Nutrient Needs...

Define Nutrient Needs and Recommended Dietary Intake? Table depicts growth of normal well-to-do Indian children. Their intake is the criteria to assess nutrient requirements t

Explain the process of fatty acid elongation, The process of fatty acid elo...

The process of fatty acid elongation is similar to fatty acid synthesis as it also requires both: -malonyl CoA and NADPH -malonyl CoA and NADH -Acetyl CoA and NADH

Defition of soap, what SOAP is: Subjective - The data includes informa...

what SOAP is: Subjective - The data includes information obtained from the patient or the patient's family regarding the problem. Objective dat a - the data is gathered  f

Explain the burden of hypertension in heart diseases, Explain the Burden of...

Explain the Burden of Hypertension in heart diseases ? Since 1942, there have been several small and large population-based studies on Hypertension. A ineta-analysis showed an

What is the prevailing wind direction, what is the prevailing wind directio...

what is the prevailing wind direction in equatorial regions affected by the trade winds? a) The wind blows from east to west b) the wind blows from west to east

Define initiation phase - mechanism of protein synthesis, Define Initiation...

Define Initiation phase - mechanism of protein synthesis ? The assembly of a ribosome on an mRNA molecule at the correct start point, the initiation codon. Three initiation fac

What are complementary genes, What are complementary genes? Does this inher...

What are complementary genes? Does this inheritance pattern obey Mendel's second law? Complementary genes are the different genes that act together to determine a given phenoty

Fats requirement in diabetes, Q. Fats requirement in diabetes? Fats: Th...

Q. Fats requirement in diabetes? Fats: The total fat recommended by WHO is less than 30% of the total calories. However in view of the widely prevalent Asian paradox in India,

Three and four kingdom classification, Three and Four Kingdom Classificatio...

Three and Four Kingdom Classification The two-kingdom classification, while solving many of the problems of classification, failed to establish clear-cut distinction between p

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