Answer:
failure of a pair of homologous chromosomes to separate in meiosis I, failure of sister chromatids to separate during meiosis II, and failure of sister chromatids to separate during mitosis. Nondisjunction results in daughter cells with abnormal chromosome numbers (aneuploidy).
Explanation:
Answer:
As this is DNA replication, this is the unwinding process
Explanation:
In DNA replication, the parent DNA to be replicated is unwound to enable access of the replication machinery (replisome) to this genetic material. The origin of replication will be identified first, which in the prokaryotes is only one, and in the eukaryotes, we have many. This sites are recognized by specific sequences on the genome. after this, melting of the DNA occurs at this origin creating a replication bubble and two replication forks. This allows for the unwinding of the DNA by the enzyme Helicases in the direction of the replication fork. Another enzyme present in this step is also the single strand binding proteins (SSB). These proteins function in the prevention of re-annealing of the unwound DNA strand by attaching themselves to each strands. Another enzyme called the topoisomerases also function here by reducing the torque (twisting) produced upstream of the replication fork as result of DNA unwinding. An example is the gyrase.
Answer:
His blood pressure would be categorized as prehypertension, in the past, was categorized as hypertension.
Explanation:
After two months of following a lower sodium diet, exercising, and losing weight, Dan's blood pressure is now categorized as prehypertension pressure or high normal blood pressure since it is between 120 to 139 mmHg for the systolic pressure and 80 to 89 mmHg for the diastolic pressure. People in this category tend to have high blood pressure in the future due to an unhealthy lifestyle, as the one that Dan had, or due to malfunctioning of the kidneys or other illnesses.
In the past, Dan was a person with hypertension because his pressure was higher than 139 for the systolic and 89 for the diastolic, this was caused due to his bad lifestyle where he ate food with high quantities of sodium, had overweight and did not exercise.
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