#Question id: 11484
#Unit 7. System Physiology – Animal
Two students studying physiology taste a known "bitter" substance, and both report sensing bitterness. They then sample another substance. Student A reports sensing both a bitter taste and a salty taste, but student B reports only a salty taste. What is the most logical explanation?
#Question id: 8856
#Unit 9. Diversity of Life Forms
Which of these can be observed in the
mesohyl of various undisturbed sponges at one time or another?
1. amoebocytes
2. spicules
3. spongin
4. zygotes
5. choanocytes
#Question id: 24248
#Unit 4. Cell Communication and Cell Signaling
#Question id: 797
#Unit 1. Molecules and their Interaction Relevant to Biology
With respect to microRNAs, which, if any, of the following statements, is FALSE?)
A. MicroRNA genes often occur in gene clusters within introns of protein-coding genes and are usually transcribed by RNA polymerase II.
B. Like an mRNA a miRNA is initially produced as a larger precursor RNA that, like the great majority of mRNAs, usually has a 5’ cap and a poly(A) tail.
C. MicroRNAs are produced by germ-line cells only.
D. A miRNA is initially produced as a duplex RNA but in order to work it needs to be converted into a single-strand RNA.
E. MicroRNAs usually work as transcription factors.
#Question id: 24120
#General Aptitude