Proteoglycans are a group of cell-surface and extracellular-matrix substances that

#Question id: 4058

#Unit 3. Fundamental Processes

The mechanism of pre-tRNA splicing differs in from the mechanisms used by self-splicing introns and spliceosomes as

#Question id: 5280

#Unit 8. Inheritance Biology

In the mating Hfr met- his+ leu+ trp+ × F- met+ his- leu- trp-.  The met marker is known to be transferred very late. After a short time, the mating cells are interrupted and the cell suspensions plated on four different growth media. The amino acids in the growth media and the number of colonies observed on each are as follows:

histidine + tryptophan  250 colonies

histidine + leucine         50 colonies 

leucine + tryptophan    500 colonies

histidine                       10 colonies

What is the order of transfer of the genes

#Question id: 18996

#Unit 13. Methods in Biology

#Question id: 5644

#Unit 5. Developmental Biology

If embryos are disaggregated with chemicals or proteases, and the individual cells are mixed together in culture, what will happen?

#Question id: 33433

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the following