Practice Questions

TLS Online TPP Program

#Question id: 30095

In tissues that do not carry out active de novo synthesis, maintenance of an adequate supply of adenine nucleotides:

#Unit 1. Molecules and their Interaction Relevant to Biology

requires ATP uptake from the blood.
depends upon the action of nucleoside phosphorylase.
is accomplished entirely by the action of adenylate kinase.
involves hypoxanthine salvage using HG-PRT.

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TLS Online TPP Program

#Question id: 26812

#Unit 8. Inheritance Biology

In an individual heterozygous, the abnormal chromosome loops out during chromosome pairing in prophase I, in which condition?

TLS Online TPP Program

#Question id: 26813

#Unit 8. Inheritance Biology

Which one of the following statements is INCORRECT?

TLS Online TPP Program

#Question id: 26814

#Unit 8. Inheritance Biology

Phenotypic variation is analyzed for milk production in a herd of dairy cattle and the following variance components are obtained: Additive genetic variance= 0.4, Dominance genetic variance= 0.1, Genic interaction variance= 0.2, Environmental variance= 0.5, Genetic−environmental interaction variance= 0.0, the heritability (H2) of milk production is___

TLS Online TPP Program

#Question id: 26815

#Unit 8. Inheritance Biology

Deletion in long arm of chromosome number 15, that leads to cause syndrome;

TLS Online TPP Program

#Question id: 26816

#Unit 8. Inheritance Biology

Deletion causing lethality, if the deletion in

TLS Online TPP Program

#Question id: 26817

#Unit 8. Inheritance Biology

There is deletion in the heterozygous condition of the gene on to the recessive allele, if it is the case of complete dominance then, which type of differences takes place within the function of gene as compare to the wild type gene ?