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TLS Online TPP Program

#Question id: 7092

A gap gene mutation might cause which of the following defects in the embryonic body plan?

#Unit 5. Developmental Biology
  1. every other segment would be missing, resulting in T1, T3, A2, A4, etc. but no T2, A1, A3, and so on.
  2. segments A2 through A6 would be missing, but the rest of the pattern is essentially normal
  3. patterning within each segment would be abnormal, causing for example denticle belts to form across the entire segment
  4. the identity of one or more segments would be transformed to that of a different segment, such that the T3 leg would transformed to a T2 leg
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TLS Online TPP Program

#Question id: 257

#Unit 1. Structure and Function of Biomolecules

ʺFive prime to three primeʺ description of a DNA strand refers to
TLS Online TPP Program

#Question id: 258

#Unit 1. Structure and Function of Biomolecules

 It is easier to melt DNA richer in AT than GC because
TLS Online TPP Program

#Question id: 259

#Unit 1. Structure and Function of Biomolecules

As B-DNA is gradually heated, the absorbance at 260 nm
TLS Online TPP Program

#Question id: 260

#Unit 1. Structure and Function of Biomolecules

Which of the following is mismatched?
TLS Online TPP Program

#Question id: 261

#Unit 1. Structure and Function of Biomolecules

Which is not a difference between B-DNA and A-DNA?
TLS Online TPP Program

#Question id: 262

#Unit 1. Structure and Function of Biomolecules

Changes in the topology and three-dimensional shape of B-DNA can result from