Determine majority of segregation errors in human patients, Biology

Assignment Help:

Which of the following defines why the vast majority of segregation errors in human patients include the two sex chromosomes (XXY, XO, XYY) or chromosome 21 (triple 21)?

A. The centromeres of these three chromosomes lack attachment sites for spindle microtubules therefore leading to a higher than normal segregation error rate.

B. These three chromosomes have the highest probability to be mis-segregated while anaphase I and II of meiosis.

C. Cells are more likely to survive with abnormal numbers of these three chromosomes whereas segregation errors of the other 20 human chromosomes are totally lethal.

D. Chromosome 21 as well as both sex chromosomes lack sequences that are categorized by proteins of the spindle assembly checkpoint (SAC). Thus the cell proceeds to anaphase even if these three chromosomes have failed to reach the metaphase plate.

 


Related Discussions:- Determine majority of segregation errors in human patients

What is the phenomenon of apical dominance in plants, What is the phenomeno...

What is the phenomenon of apical dominance in plants? How can it be artificially eliminated? Apical dominance is the phenomenon by which high (over the positive range limit) au

How are gases exchanged in sponges, Q. How are gases exchanged in sponges? ...

Q. How are gases exchanged in sponges? The gas exchange in sponges happens by diffusion from the exterior to the cells that absorb molecular oxygen and liberate carbon dioxide.

Difference between the concepts of food chain and food web, What is the dif...

What is the difference between the concepts of food chain and food web? The chain theory is a theoretical model to study the energy flux in ecosystems. In fact, in an ecosystem

Define functions of magnesium - macro minerals, Define functions of magnesi...

Define functions of magnesium - Macro minerals? Like Ca, Mg too has a role in bone formation. Soft tissue magnesium functions as a cofactor of many enzymes involved in energy m

Can you explain radula, Q What is the radula? What is the function of this ...

Q What is the radula? What is the function of this organ? Some molluscs have a tongue-like structure with harsh saliences similar to small teeth. This structure is called as ra

How to planning the daily diet for underweight patients, How to Planning th...

How to Planning the Daily Diet for Underweight Patients? As mentioned above you need to add calories gradually to the diet. A practical way of doing so is to take the present i

Ciliary and flagellar movements, Normal 0 false false false...

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

State in brief about the macronutrients, State  in brief about the Macronut...

State  in brief about the Macronutrients  Each element is specific in its function in plant metabolism, however, the exact functions for a number of them are still not known. T

What are the problems that vertebrates required, What are the problems that...

What are the problems that vertebrates required to solve to adapt to the terrestrial environment as they came from the aquatic habitat? How evolution does solve those problems?

Describe the male reproductive system, Describe the Male Reproductive Syste...

Describe the Male Reproductive System? In addition to the primary sex organs, the testes, there are accessory structures that store, nourish, and activate the sperm, and conduc

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