The point at which the toxin would interrupt normal cell signalling in the pathway is the signal amplification.
This is because of the G-protein uncoupling and inhibition of signal amplification by pertusis toxin. Pertusis toxin released by the bacteria Bordetella pertusis and prevents signal that is amplifying from the protein. The G-protein coordinates the interaction between membrane bound receptor proteins and the effector proteins involved in the intracellular signalling. The toxin promotes the uncoupling of this heterotrimetric protein and also inhibits the amplification thus preventing the interaction of the receptor proteins and the second messengers.
Answer:
The correct answer is "exchange of genetic information between parental chromosomes".
Explanation:
Homologous recombination is a genetic recombination that occurs when two similar or identical molecules of DNA exchange some of its nucleotide sequences. This type of recombination is most widely used for DNA repair purposes, however this is not distinctive of eukaryotes as prokaryotes use it as well. Therefore the most significant an unique role of homologous recombination in eukaryotes is the exchange of genetic information between parental chromosomes. This particular function is known as chromosomal crossover and it is only found in eukaryotes.
Answer:
D
Explanation:
Pls check the attachment,technical reasons
Answer:
23 Chromosomes.
Explanation:
In meiosis, you double your DNA and split twice, so that it would be a haploid cell. Normal somatic cells have 46 chromosomes in it, but you need it to be haploid so your partner can complete the cell and give they're DNA.
Answer:
Deforestation is both the removal of trees and the permanent retasking of the land for non-forestry purposes. Therefore, since tree roots help aerate soil and improve soil water retention, this permanent removal of trees reduces the amount of water that soil can absorb and increases the amount that will perforce flow over the ground as runoff. Increased surface runoff leads to flooding.
Explanation:
