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TLS Online TPP Program

#Question id: 10460

CCT overexpression mutant shows____

#Unit 6. System Physiology – Plant
  1. CCT overexpression mutant lack the sequester binding site with the COP1/SPA1, therby no longer ability to prevent degradation of HY5
  2. The CCT overexpression mutant shows different responses in the light as well as in the dark
  3. CCT overexpression donot have the N-terminus, CCT region can’t adopt an active conformation and donot allows the binding with COP1/SPA1, thereby donot allows the degradation of HY5 protein
  4. In the absence of the photosensory N terminus as in the truncation mutant , the CCT region can adopt an active conformation that sequesters COP1/ SPA1 in the absence of light, thereby promoting an increase in HY5 protein levels and transcription of key morphogenic genes
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TLS Online TPP Program

#Question id: 5304

#Unit 11. Evolution and Behavior

Bioinformatics includes ________.

I. using computer programs to align DNA sequences

II. creating recombinant DNA from separate species

III. developing computer-based tools for genome analysis

IV. using mathematical tools to make sense of biological systems
TLS Online TPP Program

#Question id: 5302

#Unit 11. Evolution and Behavior

Using modern techniques of sequencing by synthesis and the shotgun approach, sequences are assembled into chromosomes by ________.
TLS Online TPP Program

#Question id: 5232

#Unit 11. Evolution and Behavior

Using molecular clock, it was estimated that two species X and Y must have diverged from their common ancestor about 5 x 10^6 years ago. If the rate of divergence per base pair is estimated to be 0.06 per million years, what is the proportion of base pairs that differ between the two species now?
TLS Online TPP Program

#Question id: 5225

#Unit 11. Evolution and Behavior

Homeotic genes contain a homeobox sequence that is highly conserved among very diverse species. The homeobox is the code for that domain of a protein that binds to DNA in a regulatory developmental process. Which of the following would you then expect?
TLS Online TPP Program

#Question id: 5221

#Unit 11. Evolution and Behavior

Unequal crossing over during Prophase I can result in one sister chromosome with a deletion and another with a duplication. A mutated form of hemoglobin, known as hemoglobin Lepore, is known in the human population. Hemoglobin Lepore has a deleted set of amino acids. If it was caused by unequal crossing over, what would be an expected consequence?
TLS Online TPP Program

#Question id: 5220

#Unit 11. Evolution and Behavior

In comparing the genomes of humans and those of other higher primates, it is seen that humans have a large metacentric pair we call chromosome #2 among our 46 chromosomes, while the other primates of this group have 48 chromosomes and any pair like the human #2 pair is not present; instead the primate groups each have two pairs of midsize acrocentric chromosomes. What is the most likely explanation?