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TLS Online TPP Program

#Question id: 8717

Molecular clocks are more reliable when ________.

#Unit 9. Diversity of Life Forms
  1. the surrounding pH is close to 7.0
  2. most mutations of highly conserved DNA sequences should have no functional effect
  3. the DNA codes for amino acid sequences whose side groups (or R groups) have a neutral pH
  4. a significant proportion of mutations are not acted upon by natural selection
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TLS Online TPP Program

#Question id: 1038

#Unit 4. Cell Communication and Cell Signaling

Lister developed his ideas on prevention of infection during medical procedures after studying the work of
TLS Online TPP Program

#Question id: 11408

#Unit 10. Ecological Principles

According to IUCN red list criteria , a species would be classified on the basis of following criteria are a- >50 decline in population during last 10 year b-occur in area less than 20,000 sq km c- total adult population less than 2500 Above observation which of the following class of IUCN
TLS Online TPP Program

#Question id: 15714

#Unit 12. Applied Biology

Which component in the medium is reported to counteract the inhibitory effect of auxin and promotes bud formation in the absence of cytokinin.
TLS Online TPP Program

#Question id: 8716

#Unit 9. Diversity of Life Forms

The most important feature that permits a gene to act as a molecular clock is ________.
TLS Online TPP Program

#Question id: 19695

#Unit 13. Methods in Biology

Which of the following leads are used to record ECG by using two active electrodes?