TLS Online TPP Program

#Question id: 4915


When an albino female plant of maize is crossed with normal green male plant, all plants in the progeny are albino because

#Unit 8. Inheritance Biology
  1. Plastids are inherited through maternal plants

  2. Albinism is dominant over green character

  3. The crossing results in structural changes in green plastids

  4. Green plastids of male parents become mutated

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TLS Online TPP Program

#Question id: 4504

#Unit 3. Fundamental Processes

What will be the molecular weight of poly(A) chain consisting of 100 residues, where weight of AMP is 500?

TLS Online TPP Program

#Question id: 4505

#Unit 3. Fundamental Processes

Symplekin protein is participats in which of the following processes;

TLS Online TPP Program

#Question id: 4506

#Unit 3. Fundamental Processes

Which process is very much similar to polyadenylation, because its takes place by the multiple protein complexes,

TLS Online TPP Program

#Question id: 4507

#Unit 3. Fundamental Processes

A group of introns that-unlike those we have considered thus far-can splice themselves out of pre-mRNA without the need for the spliceosome, they are called

TLS Online TPP Program

#Question id: 4508

#Unit 3. Fundamental Processes

Statement: In the case of group II introns, the chemistry of splicing and the RNA intermediates produced are the same as those for nuclear pre-mRNA.

 Explanations: I. The intron uses an A residue within the branch site to attack the phosphodiester bond at the boundary between its 5’ end and the end of the 5’ exon-that is, at the 5’ splice site. This reaction produces the branched lariat.

II. A second reaction in which the newly freed 3’ -OH of the exon attacks the 3’splice site, releasing the intron as a lariat and fusing the 3’ and 5’ exons.

TLS Online TPP Program

#Question id: 4509

#Unit 3. Fundamental Processes

Which group of introns contain an “internal guide sequence”