Your friends Ben and Jane are contemplating having children and seek your genetic counsel. Ben and Jane are unrelated, but both have younger brothers with the same, extremely rare genetic trait. (In fact, Ben and Jane met at a support group meeting for children and families of children with this rare disorder.) Ben’s parents and Jane’s parents are all unaffected.        

 Assume that the trait is X-linked recessive with complete penetrance. What is the probability that Ben and Jane’s first child will be affected? What is the probability that the first child will be a carrier? 

#Question id: 2054

#Unit 4. Cell Communication and Cell Signaling

What is the single best defining feature of systemic lupus erythematosus (SLE)?

#Question id: 2055

#Unit 4. Cell Communication and Cell Signaling

The proteins of the membrane attack complex (MAC) insert into the cell membranes of invading microorganisms and punch holes that result in lysis of the pathogen. The complement components of the MAC are,

#Question id: 2056

#Unit 4. Cell Communication and Cell Signaling

A mother has an Rh- and the father an Rh+ blood type. The first baby born to the parents was Rh+ . However, the parents elect for the mother not to receive Rhogam. future babies of this couple at risk for

#Question id: 2057

#Unit 4. Cell Communication and Cell Signaling

Lymph nodes and the spleen are the most highly organized secondary lymphoid organs. T-cell and B-cell activity are separated into distinct microenvironments in both. T cells and B cells  are found in

#Question id: 2058

#Unit 4. Cell Communication and Cell Signaling

NOD-like receptors (NLRs) are a large family of cytosolic PRRs activated by intracellular PAMPs, DAMPs, and other harmful substances. The NOD NLRs bind intracellular microbial components such as cell wall fragments. NLRC family are NOD1 and NOD2 recognise?

#Question id: 13159

#Unit 4. Cell Communication and Cell Signaling