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TLS Online TPP Program

#Question id: 33513

Which one of the following statements regarding mutations in the mitochondria during aging is INCORRECT?

#Unit 2. Cellular Organization
  1. Mutations in mitochondrial genome lead to defects in energy production.
  2. The mutation rate in mitochondria is much higher than that in the nucleus.
  3. Mutations reduce ROS production since electron transport is faulty.
  4. There is an enhanced rate of apoptosis in cells with mutant mitochondria. 
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TLS Online TPP Program

#Question id: 23579

#Unit 13. Methods in Biology

Results of research on the Human Genome Project should enable which of the following?
TLS Online TPP Program

#Question id: 7117

#Unit 5. Developmental Biology

Which of the following statements explains why gain-of-function mutation of Pmar1 results in a vegetalized embryo:
TLS Online TPP Program

#Question id: 11816

#Unit 6. System Physiology – Plant

Which of the following given statements are correct predict about negatively regulate signalling pathway?
TLS Online TPP Program

#Question id: 3855

#Unit 3. Fundamental Processes

In eukaryotes, which of the following modifications is made to a primary transcript prior to its transport out of the nucleus?
TLS Online TPP Program

#Question id: 13193

#Unit 1. Molecules and their Interaction Relevant to Biology

Data, collected from DNAs of a great many different species, led Chargaff to the following conclusions:
A. The base composition of DNA generally varies from one species to another.
B. DNA specimens isolated from different tissues of the same species have the different base composition.
C. The base composition of DNA in a given species changes with an organism’s age, nutritional state, or changing environment.
D. In all cellular DNAs, the sum of the purine residues equals the sum of the pyrimidine residues.
Which of the above statements are INCORRECT regarding Chargaff’s rule?