Answer:
Explanation:
La contaminación de mares y océanos es una realidad creciente en estos tiempos y esto tiene graves consecuencias para la vida marina, como problemas de desorientación, alteraciones en las cadenas alimentarias, toxicidad para la fauna marina, destrucción de los ecosistemas marinos e, incluso, acaba habiendo también consecuencias para el ser humano.
En este artículo de EcologíaVerde veremos exclusivamente cómo afecta la contaminación del agua a los animales marinos, pues es necesario tomar consciencia del perjuicio que supone este gran problema ambiental para todos y no solo para las personas.
<h2>GPCRs and RTKs</h2>
Explanation:
1) Phosphorylation of receptor can terminate signal or desensitize receptor: GPCRs because when signal persists a protein kinase receptor is activated,this further catalyse the phosphorylation of several serine residue at cytosolic phase of 7 transmembrane
Phosphorylated transmembrane recognized by arrestin protein blocks interaction between trimeric G protein and receptor thus blocks signal transduction
2) Autophosphorylation of receptor can initiate signal: RTKs because receptor dimerization activates intrinsic tyrosine kinase activity by which they phosphorylate its own tyrosine residue on cytosolic phase
3) Structure contains seven transmembrane helices: GPCRs because it consists of single polypeptide and spans the membrane 7 times hence called 7 transmembrane;it recognizes external signal and activates trimeric G protein
4) Ligand binding induces conformational change in receptor: RTKs because normally RTK exist in monomeric form in absence of any ligand molecule but when any ligand molecule binds receptor starts to dimerize
5) Receptor activation causes phosphorylation of its cytosolic subunits: RTKs because when receptor gets activates the intrinsic tyrosine kinase activity by which they phosphorylate its cytosolic subunits
6) An example is the insulin receptor: Insulin receptor is present on plasma membrane and belongs to RTK family and always exist in dimeric form
7) Transports some ligands through the membrane: Neither GPCR nor RTK;ligand gets transported through the membrane through ligand gated channel
8) An example is the epinephrine receptor: Epinephrine is an endocrine hormone produced by adrenal glands in stress condition and prepare body for fight and flight;Epinephrine uses GPCR signalling pathway by four different types of membrane receptors in different tissues
9) Activate heterotrimeric G proteins directly: Transmembrane protein of GPCR recognizes the external signal and activates G protein,activated G protein binds with effector enzyme and activate it which further produce or destroy secondary messenger that carry message from cell surface to cell interior
Answer:1%
Explanation:
The correct answer is less than 8% of DNA is active. But here's only 3options are available so the answer is 1%. Other DNA is in an inactive form. Only 8% of DNA is performing functions of the body actively.
The correct answer is that it will not affect the length of the tails of any of the offspring.
The modification in the tail of the mouse was not because of its genes, rather, it was because of the environment. The correct answer is that it will not affect the length of the tails of any of the offspring.
The modification in the tail of the mouse was not because of its genes, rather, it was because of the environment. The passing of the traits from the parents to the offspring is known as heredity, and the offspring attain the genetic information of their parents. Thus, the mouse will pass on only the features present in its genes to its offspring.
