TLS Online TPP Program

#Question id: 5727


Pairing occurs during the prophase of meiosis I, after the chromosomes have been duplicated. Centromere mention as 1, 2, 3 and 4

Which of the following is correct statement Types of disjunction in a translocation heterozygote during meiosis I.

A) Centromeres 1 and 3 go to one pole and centromeres 2 and 4 go to the other pole, producing non fuctional gametes.

B) Centromeres 1 and 2 go to one pole and centromeres 3 and 4 go to the other pole, producing viable gametes.

C) Centromeres 2 and 3 go to one pole and centromeres 1 and 4 go to the other pole, producing euploid gametes.

D) Centromeres 2 and 3 go to one pole and centromeres 1 and 4 go to the other pole, producing non viable gamete

#Unit 8. Inheritance Biology
  1. A and B   

  2. B and C     

  3. A and C    

  4. A and D

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TLS Online TPP Program

#Question id: 27481

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is the examples of Epimers?

TLS Online TPP Program

#Question id: 27482

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is holds true for the D-Ribose (Rib), D-Arabinose (Ara), D-Xylose (Xyl), D-Lyxose (Lyx)

TLS Online TPP Program

#Question id: 27483

#Unit 1. Molecules and their Interaction Relevant to Biology

Compounds which have the same molecular formula and sequence of bonded elements, but which are nonsuperimposable, non-mirror images

TLS Online TPP Program

#Question id: 27484

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is truly stating about the stereochemistry of D-Erythrose, L-Erythrose  and D-Threose and L-Threose

1. D-Erythrose, L-Erythrose are enantiomers to each other

2. D-Erythrose, L-Erythrose are diastereomers to each other

3. D-Erythrose and D-Threose are diastereomers to each other 

4. D-Erythrose, L-Erythrose are enantiomers to each other 

TLS Online TPP Program

#Question id: 27485

#Unit 1. Molecules and their Interaction Relevant to Biology

Two sugars that differ in configuration at only one chiral center are described as

TLS Online TPP Program

#Question id: 27486

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the is true regarding D-Mannose,  D-Glucose, and D-Galactose
1. D-Mannose are epimer with D-Glucose, at C2
2. D-Glucose, are epimer with D-Galactose at C4
3. D-Mannose are epimer with D-Galactose at C4
4. D-Galactose are epimer with D-Mannose at C2