Answer:
Epigenetic effects can be caused by DNA heterochromatin and/or histone silence or activate.
As such, they can different chromosomes or certain chromosomal regions and be responsible for parental imprinting or influencing gene activity in oxidation and reduction.
Patterns of nucleotide demethylation and hypermethylation are often activate when cancer cells are compared to normal cells.
Explanation:
Cells acquire various patterns of gene expression during differentiation to adapt to a changing environment. Epigenetic and genetic alterations are considered as two independent mechanisms that participate in the onset and progression of cancer. Epigenetic mechanisms can be as important for biological events as genetic mechanisms, which do not imply a change in the DNA sequence, but do have an important role in the modification of gene expression.
The correct answer is false and here is why:
Clear cutting refers to the cutting of trees, specifically all of the trees in one select area. Replanting is not done and this leads to deforestation.
Controlled burns have a completely different affect. They burn the under brush to help keep the soil rich with nutrients, plus they also help to prevent large crown fires that burn down whole forests from happening.
Clear cutting is a bad thing and controlled burns are a good limiter for a forest.
Passive Transport: Simple Diffusion. Diffusion across a cell membrane is a type of passive transport, or transport across the cell membrane that does not require energy. ... Molecules that are hydrophobic, just like the hydrophobic region, can pass through the cell membrane by simple diffusion.
1. They have a slimy skin in which the oxygen gets dissolved. 2. The frog have lung instead of gills 3. They have enormous no. of nerves which help them to breathe through skin
La linfa carece de células, está constituida por un líquido incoloro y cargada de lípidos y lípidos que provienen del interior de las células, también contienen solamente glóbulos blancos. La función de la linfa es proteger al organismo de los agentes patogenos y trasladarlos a la sangre a fin de que esta los transporte al exterior del organismo.
La sangre tiene color rojizo, contiene células: leucocitos, hematies, minerales, vitaminas, hormonas, plaquetas, agua, oxígeno y dióxido de carbono. Su función es transportar todos los elementos necesarios a la célula y recoger de esta los residuos resultado de sus funciones de mantenimiento celular
