Answer:
They are opened either by the binding of ligands or by changes in electric potential across the membrane
Explanation:
Ion channels are the integral membrane proteins that form pores or holes for the transport of specific ions, such as potassium ions (K+), Na+, etc. Most ion channels are selective and allow only a single type of ion to pass through. These ion channels facilitate the diffusion of ions down the concentration gradient and do not require ATP.
Ion channels are mostly gated. Some ion channels open in response to change in the concentration of ions and electric charges across the membrane. Some ion channels open and close in response to the binding of specific molecules called a ligand. For example, binding of two molecules of acetylcholine to the receptor on the motor endplate of a neuromuscular junction opens an ion channel in the ACh receptor through which Na+ can flow across the membrane.
Answer:
no it can't be possible (but it depends if the fathers blood group is AA not AO and the mother's group is BB not BO) otherwise it can't be possible
Explanation:
blood group O is recessive so both parents must have this type of blood group or at least one of them to have an offspring with this blood group
if they had more children they'd have blood groups A,B or AB
Answer: The female is a carrier for hemophila, since the parents are phenotypically normal and The Turners syndrome is caused by an error which caused the missing chromosome to dissapear duting oogenesis (egg prodiction) or spermatogenesis (sperm production)
Explanation:
Hemophila is an X-linked recessive disease an in this case has complete penetrance ie. The phenotype will be expressed.
Here the parents do not express hemophilia thus indicating that the mother (this is an X-like recessive disease) expressess hemophila on the recessive X chromosome
Turners Syndrome is caused by chromosomal non-disjunction during oogenesis or spermatogenesis.
When a cell divides by way of mitosis, it produces two clones of itself, each with the same number of chromosomes.
Hope this helps! ;)
A wedge is a simple machine that includes knives, chisels, and axes!
I hope this helps!