E) All of the answers are correct.
Ion channels are proteins located in the membrane that allow ions to pass through the channel pore. Ion channels can be classified (by what opens and closes the channels) into few groups:
• Voltage-gated channels-open and close in response to membrane potential
Examples: Voltage-gated proton channels, Voltage-gated sodium channels, Voltage-gated potassium channels
• Ligand-gated (neurotransmitter) or ionotropic receptors (ligand binds to extracellular domain of the receptor
Examples: "nicotinic" Acetylcholine receptor, ionotropic glutamate-gated receptors
• Lipid-gated- lipid molecules bind to the transmembrane domain of the channel
Example: Inward-rectifier potassium channels
• Light-gated channels-like rhodopsin channel that is directly opened by photons
• Mechanosensitive (e.g. stretch, pressure) ion channels.
Skeletal, smooth, and carbiac. Carbiac makes up the heart.
Answer;
Rough endoplasmic reticulum
Explanation;
Rough endoplasmic reticulum is among the organelles that are found in eukaryotic cells. The reason as to why it is called rough is because it has ribosomes attached to its surface.
Its main function is to produce proteins. It is made up of cisternae, tubules and vesicles. The cisternae consists of flattened membrane disks, which are involved in the modification of proteins.
Once enough proteins have been synthesized, they are transferred from the Rough endoplasmic reticulum to the Golgi apparatus via membrane-bound vesicles.
Answer:
Explanation:
If flies that are heterozygous for all three traits are crossed; e.g HtHtHt crosses with HtHtHt. The proportion of the offspring that would be expected to be heterozygous for all three traits will be: 1/8 because 50% (0.5) of their offspring will be heterozygous for just one trait. Therefore for three traits; we have (0.5)³= 0.125
0.125 is equivalent to
From the table, the area of the asterisk region illustrate the traits that are heterozygous in the offspring.
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