The period from the initiation of the action potential to immediately after the peak is referred to as the absolute refractory period (ARP) (see Figs. 1 and 2). This is the time during which another stimulus given to the neuron (no matter how strong) will not lead to a second action potential.
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Chloroplasts are most commonly found in the green (mesophyll) cells of photosynthesizing plants. Any part of a plant that is green is capable of photosynthesis and therefore contains cells containing chloroplasts.
Answer:
covalent bond
it has 1 (outer most shell)
it has 7 (outter most shell)
hydrogen gains 1 chlorine gains 1
Explanation:
covalent bond as atoms share electrons to achieve full outer shell if electrons
hydrogen gains one to achieve 2 electrons in outer shell
chlorine gains 1 to achieve 8 electrons in outer shell
Answer:
A general decrease in transcriptional activation
Explanation:
When acetyl groups are added to histone proteins by acetyltransferase enzymes, the 30-nm chromatin fiber will not be formed because the proteins are prevented from doing so. This further destabilizes the chromatin structure and allows the occurrence of transcription. However, raising the cells to 40°C does not allow the acetyltransferase enzyme to function and hence the acetyl group will be hindered from being added to the histone protein which is the main target of the enzymes. Thus, transcription activation will be blocked because the chromatin and nucleosomes would remain stabilized.
Answer:
False
Explanation:
In eukaryotes, replication begins from multiple origins of replication and the replication forks move bidirectionally to replicate the DNA.