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TLS Online TPP Program

#Question id: 7228

Why do Drosophila wings develop in only one particular thoracic segment, legs in all three, and antennae on the head? Which of the following answer is correct?

#Unit 5. Developmental Biology
  1. The types of appendages produced by each segment reflect the identity conferred on that segment by the pattern of Hox gene expression along the antero-posterior axis in the embryo.
  2. The types of appendages produced by each segment reflect the identity conferred on that segment by the pattern of segment polarity gene expression along the antero-posterior axis in the embryo.
  3. The types of appendages produced by each segment reflect the identity conferred on that segment by the pattern of gap gene expression along the dorso-ventral axis in the embryo.
  4. The types of appendages produced by each segment reflect the identity conferred on that segment by the pattern of pair-rule gene expression along the dorso-ventral axis in the embryo.
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TLS Online TPP Program

#Question id: 5553

#Unit 5. Developmental Biology

The notochord is a ___ structure in vertebrate embryos that lies under the ___, and is bordered by ___.
TLS Online TPP Program

#Question id: 6543

#General Aptitude

What is the next number in the following sequence :

2,3,5,6,3,4,7,12,4,5,9......
TLS Online TPP Program

#Question id: 709

#Unit 1. Molecules and their Interaction Relevant to Biology

A sequence of amino acids in a certain protein is found to be -Ser-Gly-Pro-Gly-.  The sequence is most probably part of a(n):
TLS Online TPP Program

#Question id: 18751

#Unit 13. Methods in Biology

What is the half life cycle for Taq polymerase?
TLS Online TPP Program

#Question id: 10622

#Unit 10. Ecological Principles

For a species having logistic growth, if K = 4000 and r = 0.25, the maximum growth rate will be