Which of these statements is true:

Biology

1 answer:

PilotLPTM [1.2K]3 years ago

4 0

Answer:

Option a is the one, that is true.

Sister chromatids separate in anaphase of mitosis and anaphase Il of meiosis

Explanation:

After the interphase in the cell division cycle, the mitosis process begins, which is composed of 4 phases, prophase, metaphase, anaphase and telophase. The prophase occurs when the chromatin is condensed and the mitotic spindle is formed, the metaphase the chromosomes align along the cell equator, in the anaphase the separation of the sister chromatids occurs and in the telophase finally the heterochromatin is converted into euchromatin and the envelope is formed nuclear cell.

Meiosis, which is the cell division of germ cells, also has the same phases but they occur on two occasions: prophase I, metaphase I, anaphase I and telophase I for meiosis I and for meiosis II, prophase II, metaphase II, anaphase II and telophase II. In the anaphase I the homologous chromosomes are separated, they are condensed in the prophase II while in anaphase II the chromatids are separated.

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Respiratory __________ is produced by inadequate excretion of CO2 with inadequate ventilation, resulting in elevated plasma CO2

devlian [24]

Answer:

acidosis

Explanation:

Respiratory acidosis is caused due to hypoventilation because of which gas exchange process is hindered. As a result CO2 produced in body is not excreted adequately and it starts to accumulate. Its concentration in plasma increases and it combines with water molecules in plasma to form carbonic acid. Carbonic acid drops the pH of the blood and thus acidic environment is created. Since this event is a product of faulty respiratory mechanism, it is called respiratory acidosis.