Answer: B. The release of calcium ions causes myosin and actin to attach to each other. This statement best describes a cause and it's effects that occur during the process of muscle contraction.
Muscle contraction can be explained by sliding filament theory.
1. Activation of muscles: the motor nerve generates an impulse to transfer signals from neurons to neuromuscular junction. This stimulates sarcoplasmic reticulum to release calcium into the muscle cells.
2.Contraction of muscles: calcium in the muscle cells binds with troponin causes actin and myosin to bind. Actin and myosin in the muscle binds and contract by utilizing ATP as a source of energy.
Answer:
A physical property of the helium gas, the volume has changed.
Explanation:
its an example of physical property because the substance is being removed and the form of the balloon is changing.
50/100. When solving for an offspring you Look for a dominant if there's a dominant it'll reduce the chance for the offspring to be a recessive. But it'll be a 50% Because the recessive also has a chance to be the final offspring.
Answer:
nucleotides
Explanation:
The nucleotides forming each DNA strand are connected by noncovalent bonds, called hydrogen bonds. Considered individually, hydrogen bonds are much weaker than a single covalent bond, such as a phosphodiester bond.
Answer:
2. polymerase chain reaction
Explanation:
In Sanger's method, the process is used to make copies of unknown DNA sequences with different lengths/fragments using ddNTPs by chain termination method.
On the other hand, in polymerase chain reaction (PCR) complete copies of gene clones are required. Thus, there is no need of fragment formation so that it does not require ddNTPs.
