#Question id: 4747
#SCPH28 | Zoology
How does incomplete dominance differ from incomplete penetrance?
#Question id: 2274
#SCPH01 Biochemistry
Unlike those of prokaryotes, eukaryotic cell walls are composed of
#Question id: 4125
#SCPH01 Biochemistry
Which of the following are features of the wobble hypothesis?
#Question id: 3274
#SCPH06 I Botany
The common edible frog of Europe is a hybrid between two species, Rana lessonae and Rana ridibunda. The hybrids were first described in 1758 and have a wide distribution, from France across central Europe to Russia. Both male and female hybrids exist, but when they mate among themselves, they are rarely successful in producing offspring. What can you infer from this information?
#Question id: 804
#SCPH05 I Biotechnology
With respect to microRNAs, which, if any, of the following statements, is false?
a) A microRNA normally works by binding to perfectly complementary sequences within an RNA transcript, usually an mRNA.
b) Like the great majority of mRNAs an miRNA is usually produced as a larger precursor RNA that is capped and has a 3’ poly(A) tail.
c) The precursor miRNA undergoes different types of post-transcriptional cleavage by endoribonucleases that are specific for double-stranded target sequences.
d) A nuclear endoribonuclease called dicer cleaves the miRNA precursor so that it forms a stem-loop RNA.