Answer:
The correct answer is c It would prevent the receptor from becoming activated.
Explanation:
Mutation in the receptor kinases that leads to cancer allow the dimerization and activation of receptor even in the absence of signalling molecule that means activation of receptor in case of mutant does not requires the presence of Signalling molecule.
That means if the antibody prevents the dimerization of the receptor of the mutant then it(antibody) have to prevent the receptor from being activated.
Answer:
Explanation:
The transformation of a zygote into an embryo adheres both to nature and to nurture: not only genetics but also environment determines the outcome. This idea has assumed many forms. A territory in the early sea urchin blastula contains clones of founder cells, and each clone contributes exclusively to one territory (Cameron & Davidson, 1991). Both the lineage of a founder cell, i.e. its nature, and the position of a founder cell, which determines how it is nurtured, contribute to its fate. Fertilisation, the topic of the first Forum, fixes the genes; interblastomere communication, the topic here, regulates gene expression. Blastomeres communicate like any other cell – via ligand-receptor interactions and through gap junctions. Saxe and DeHaan review these mechanisms. The definition of ligands and receptors becomes broadened in this context, and cell adhesions as well as gap junctions enter into the story. In spite of these entanglements, it appears that nature uses the same sorts of mechanisms to get cells to specialise that she uses to keep them talking. Thus, neurons and glial cells signal to one another via glutamate receptors and gap junctions (Nedergaard, 1994). Likewise, we expect neurotransmitters (and neurotransmitter transporters) to help signal differentiation. The biophysicist may ask whether electrical properties also play a role, but that we reserve for another Forum. If gap junctions figure in development as fusion pores that pass small molecules and electrical signals between blastomeres, another parallel suggests itself. Brian Dale asked in the first Forum: How does a spermatozoon activate an oocyte? This question, which concerns gamete communication, has produced two schools of thought and remains controversial (Shilling et al., 1994). Do sperm activate oocytes via contact-mediated mechanisms or through fusionmediated mechanisms? Or do both mechanisms occur, as they appear to in development?
Answer:
B) specific heat
Explanation:
The specific heat of a substance is how much heat per unit mass it need to elevate its temperature by one degree Celsius. Its units are joule per kelvin and kilogram, J/(K kg). <em>In the example given you can observe that water need more heat in order to evaporate compared to the alcohol.</em>
I hope you find this information useful and interesting! Good luck!
Answer:
commensalism
Explanation:
the barnacles benefit from the whale while the whale doesn't but the whale isn't harmed either
Answer:
genome maintenance genes are recessive; you need 2 to cause cancer. If someone inherits one, they only need 1 to cause cancer
Explanation: