Question

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Question 4 ..
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Answer 1

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Because primary immunodeficiency diseases are caused by gene defects that affect blood cells this can be sufficient to cure the disease.

Until now__gene therapy has been used to treat patients with SCID secondary to adenosine deaminase (ADA) deficiency__X-linked SCID__ CGD and WAS.

Severe combined immunodeficiency (SCID) is very rare genetic disorder affecting between 50 and 100 children born in the U.S. every year.

SCID is often called “bubble boy disease” made known by the 1976 movie “The Boy in the Plastic Bubble.” 

Essentially children with SCID lack the ability to produce an immune system. The human immune system constantly patrols protects and defends the body from all types of “enemies,” including:

▪bacteria

▪viruses

▪parasites

▪fungi


A child with SCID:

●can't produce T cells

▪doesn't have working B cells (because there are no T cells for them to work with)

▪has virtually no immune system.

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Answer 2

HEYA MATE HERE IS YOUR SOLUTION .... TO THE PROBLEM...✌


A CHROMOSOME consist of a DNA double helix bearing a linear sequence of genes....The resulting of two identical copies of DNA are connnected to each other at centromere .... Each copy is called a CHROMATID....A CHROMOSOME before cell division is formed by one CHROMATID while it is formed pf two chromatidS after cell division...

HOPE IT WILL HELP U ... ☺


@SharLien♡♡♡