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TLS Online TPP Program

#Question id: 16960

antigenic determinant is defined as a region of an antigen that makes contact with the antigen-combining region on an antibody. Which statement is true for allotypic determinants?

#Unit 4. Cell Communication and Cell Signaling
  1. Antigenic determinants that are allele specific—small differences in the constant region of light and heavy chains that vary among individuals.
  2. Antigenic determinants characteristic of a particular antigen combining site. Each antibody will have its own characteristic idiotypic determinants made up of residues from the heavy and light chains that contribute to the antigen-binding regions.
  3. Antigenic determinants specific to each heavy chain class
  4. Papain-generated fragment of antibodies consisting of the paired CH2CH3 (and, for IgM and IgE, CH4) domains
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TLS Online TPP Program

#Question id: 5708

#Unit 8. Inheritance Biology

If non-disjunction occurs in meiosis I, which of the following scenario is most likely to occur?
TLS Online TPP Program

#Question id: 5709

#Unit 8. Inheritance Biology

What is probability of couple where male is karyotypically normal and the female in pericentric inversion in heterozygous condition produced child with disability if 50% chance of crossing over takes placed within pericentric inversion. (Note: Duplication and deletion in gamete will results  in disability)
TLS Online TPP Program

#Question id: 5710

#Unit 8. Inheritance Biology

This cytological analysis, chromosome (A) represents the normal condition and the centromere position. Assume that only one structural chromosome aberration occurs in the other chromosomes
TLS Online TPP Program

#Question id: 5711

#Unit 8. Inheritance Biology

Which of the following is results of Crossing over?
TLS Online TPP Program

#Question id: 5712

#Unit 8. Inheritance Biology

In each of the following cases, determine the consequences of a single crossover within the inverted region of a pair of homologous chromosomes with the gene order A B C D in one chromosome and a c b d in the other. There is a two situation of centromere for that gene. 

(A) Centromere is not included within the inversion.

(B) Centromere is included within the inversion

Following consequence are resulting are

I - The crossover chromatids consist of a dicentric and an acentric

II- One Cross over product is duplicated for the terminal region contain in A and deficient for the terminal region containing D

III- Both cross over products is monocentric

Following is correct combination for consequence?
TLS Online TPP Program

#Question id: 5713

#Unit 8. Inheritance Biology

Following some statement are correct?

A) Translocation may be associated with movement of genetic material within the same chromosome

B) A person that is heterozygous for translocation may result in non viability in their zygote

C)  A person that is heterozygous for inversion may result in non viability in their recombinant zygote

D) A person that is heterozygous for translocation and lack of crossing over within translocated area result in all viable gametes