Answer: a cell membrane
Explanation: But remember that bacteria do have their DNA inside their protein envelope. They don’t have a nucleus, but they do have DNA making them also have the ability to reproduce.
Nonpreemptive kernels have a single active process at a time. Therefore, race situation scenarios are not possible in nonpreemptive kernels. If preemptive is properly designed to ensure that shared kernel data is devoid of race circumstances, it is race-free.
An illustration of a race condition is when a data structure updates a list of open files in a system when a new file is closed or opened. In this scenario, opening two files simultaneously would cause the list to receive two separate updates, which could lead to race situations.
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Difference between preemptive and nonpreemptive kernaals ?</h3>
It is a procedure that might be immediately changed. In comparison to non-preemptive kernels, it is more suited for real-time programming. Preemption is typically permitted, even in kernel mode. Responsive time is deterministic and is more responsive as compared to non-preemptive kernel.
It is a process that keeps running indefinitely until it has handled all execution handlers or willingly gives up the CPU. Compared to a preemptive kernel, it is less suited to real-time programming. Preemption of kernel mode processes is typically not allowed. In comparison to a preemptive kernel, response time is less responsive and nondeterministic.
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Answer:
D) Yes, it is important that the single-stranded DNA have 3′ ends, so resection must occur in the 5′ to 3′ direction.
Explanation:
During homologous recombination, the exonucleases remove nucleotides from the free 5' ends of the DNA at the double-stranded breaks to create a double-strand gap.
Removal of more nucleotides from the free 5' ends creates 3' single-strand extension which in turn invades the intact homolog and pairs with its complementary sequence of the DNA. The invaded free 3' end is then extended by DNA polymerase to give rise to Holiday junctions.
If the resection occurs in the opposite direction and creates overhangs with free 5' ends, the free 3' ends would not be available to serve as a primer to facilitate the replication.
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