A constitutive gene is unregulated, which means that its expression level is relatively constant. The expression of a
regulated gene varies under different conditions. In bacteria, the regulation of genes oftentimes occurs at the level
of transcription by combinations of regulatory proteins and small effector molecules. In addition, gene expression
can be regulated at the level of translation or the function of a protein can be regulated after translation is
completed.
<span>An inducible gene is a gene whose expression is either responsive to environmental change or dependent on the position in the cell cycle.</span><span>The rapid activation of gene expression in response to stimuli occurs largely through the regulation of RNA polymerase II-dependent transcription</span>
Answer:
The correct answer is C) Phylogenetic trees always show increased branching, representing increased diversity over time.
Explanation:
A new branch in phylogenetic trees appears when new species appear, meaning that diversity increases. The appearing of new branches can show speciation processes and it can also help to understand how a certain lineage evolved through time or the specific divergence in one point.
Answer:
Soil
Explanation:
Soil is considered to be the basis for the formation of life on land based formations.
Answer:
African Honeybee:
Phylum: Arthropoda
Species: Apis mellifera
Genus: Apis
Kingdom: Animalia
Order: Hymenoptera
Class: Insecta
Tribe: Apini
Grasshopper:
Phylum: Arthropoda
Informal group: Acridomorpha; Dirsh, 1966
Kingdom: Animalia
Class: Insecta
Order: Orthoptera
Black Widow Spider:
Scientific name: Latrodectus
Length: Southern black widow: 1.5 in.
Class: Arachnida
Order: Spider
Phylum: Arthropoda
Mosquito:
Scientific name: Culicidae
Order: Diptera
Class: Insecta
Speed: 1 – 1.5 mph
Clutch size: 100 – 200
Yellow Jacket:
Phylum: Arthropoda
Family: Vespidae
Genus: Vespula or Dolichovespula
Order: Hymenoptera
Class: Insecta
Kingdom: Animalia
I hope this helped you
