Answer:
Addition of a(n) methyl group to certain lysine residues of a histone protein makes the region of chromatin transcriptionally silent; addition of a(n) acetyl group to certain lysine residues makes the region of chromatin transcriptionally active.
Explanation:
The changes suffered in the expression and activity of the genes are studied by the Epigenetics.
The correct answer for this question is D
The temperate forest occurs across north America, Europe and Asia. This biome consist of evergreen conifers with needle like leaves which are able to tolerate wide fluctuation of temperature and light. Some vegetation of temperate biome are Pine, Fir and Hemlock. The trees and shrubs of temperate forest usually shed their leaves with the onset of autumn and new leaves are produced in early spring
Taiga is the Russian word for forest and is the largest biome in the world. This biome contain mostly coniferous trees. These conifers contain long, thin waxy needles. The wax gives them protection against freezing temperature and from drying out. They do not sheds their leaves in winter and keep their needles all year long.
Answer:to stop from extinction
Explanation:
Answer:
scavengers
Explanation:
these are the animals that feed on carrion, dead plants,or refuse.
