#Question id: 4302
#Unit 3. Fundamental Processes
Which one of the following proteins is involved in promoter recognition in eukaryotes?
#Question id: 10970
#Unit 1. Molecules and their Interaction Relevant to Biology
A mother of blood type A+ who has always been perfectly healthy just delivered her second child. The father is of blood group O−. Knowing that the child is of blood group O− (O, Rh−), what would you expect to find in this child?
#Question id: 10174
#Unit 6. System Physiology – Plant
A developmental process in which leaves express a set of biochemical and morphological adjustments that are suited to the particular environment in which the leaves are exposed known as
#Question id: 27389
#Unit 1. Molecules and their Interaction Relevant to Biology
The of the tendency of an atom to attract a bonding pair of electrons is known as
#Question id: 4539
#Unit 3. Fundamental Processes
The yeast S. cerevisiae exists in three forms: two haploid cells of different mating types—a and alpha and the diploid formed when an a and an a cell mate and fuse. The a cell and the a cell each encodes cell-type-specific regulators: a cells make the regulatory protein a1, and alpha cells make the proteins alpha1 and alpha2. A fourth regulatory protein, called Mcm1, is also involved in regulating the mating-type-specific genes (and many other genes) and is present in both cell types which shows Combinatorial Control.
The arrangement of regulators at the promoters of a-specific genes and a-specific genes is
cell type: |
gene regulatory proteins: |
target genes: |
1.a cell (haploid) |
a1 Mcm1 |
aSG alphaSG |
2.αlpha cell (haploid) |
alpha 1 alpha 2 Mcm2 |
hSG |
3.a/αlpha cell (diploid) |
a1 Mcm2 alpha2 |