TLS Online TPP Program

#Question id: 710


Which is the correct explanation for the effect of the pH changes on the conformations of poly(Glu) and poly(Lys)

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. repulsion maximised at pH 1 and pH 12 for Lys and Glu

  2. repulsion maximised at pH 1 and pH 12 for Glu and Lys

  3. No repulsion at pH 1 and pH 12 for Lys and Glu

  4. repulsion minimised at pH 1 and pH 12 for Lys and Glu

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TLS Online TPP Program

#Question id: 4920

#Unit 8. Inheritance Biology

In Neurospora, the mutant stp exhibits erratic stop-and start growth. When a female of stp strain is crossed with a normal strain acting as a male, all progeny individuals' showed stp mutant phenotype. However, the reciprocal cross resulted in all normal progeny, individuals. These results can be explained on the basis of

A. Uniparental gene contribution

B. Nuclear inheritance with concept of dominance

C. Sex link character

D. stp mutation may be located in chloroplast DNA

The most appropriate statement or combination of the above statements for explaining the experimental results is:

TLS Online TPP Program

#Question id: 4799

#Unit 8. Inheritance Biology

You set up a mapping cross involving your favorite gene (YFG) in Neurospora and determine the following octad types: 4:4 arrangement 83; 2:4:2 arrangement 7; 2:2:2:2 arrangement 10. What is the distance between your gene and the centromere?

TLS Online TPP Program

#Question id: 4801

#Unit 8. Inheritance Biology

You set up a mapping cross involving two genes in Aspergillus and determine the following percentages of tetrad types: parental ditype 51%, nonparentalditype 49%. What can you say about your genes?

TLS Online TPP Program

#Question id: 4802

#Unit 8. Inheritance Biology

Why is tetrad analysis useful for studying genetics?

TLS Online TPP Program

#Question id: 4803

#Unit 8. Inheritance Biology

Linked genes:

TLS Online TPP Program

#Question id: 4804

#Unit 8. Inheritance Biology

Formation of the following pattern in an ordered octad is due to what event during meiosis? Pattern: AAaaaaaAA