At the end of meiosis I there are ___________ whereas at the end of meiosis II there is/are__________
two haploid (n) cells; four haploid (n) cells
two diploid (2n) cells; one haploid (n) cell
two diploid (2n) cells; four haploid (n) cells
two haploid (n) cells; one diploid (2n) cell
The Correct Answer is A
A. Two haploid (n) cells; four haploid (n) cells: At the end of meiosis I, the result is two haploid cells, each with half the number of chromosomes of the original cell. At the end of meiosis II, these two haploid cells divide again to form a total of four haploid cells.
B. Two diploid (2n) cells; one haploid (n) cell: This option is incorrect because meiosis I produces two haploid cells, not diploid cells, and meiosis II produces four haploid cells, not one.
C. Two diploid (2n) cells; four haploid (n) cells: This option is incorrect because meiosis I does not produce diploid cells; it produces two haploid cells. At the end of meiosis II, the result is four haploid cells, which is correct, but the description of meiosis I is incorrect.
D. Two haploid (n) cells; one diploid (2n) cell: This is incorrect because meiosis I results in two haploid cells, and meiosis II results in four haploid cells, not one diploid cell.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Chief cells secrete pepsinogen, not HCl.
B. Parietal cells in the stomach lining are responsible for secreting hydrochloric acid (HCl). This acid is crucial for digestion and killing pathogens.
C. Mucous cells secrete mucus, which protects the stomach lining from the acidic environment. They do not secrete HCl.
D. Regenerative (stem) cells are involved in the renewal of the stomach lining, but they do not secrete HCl.
Correct Answer is False
Explanation
The embryonic stage extends from 16 days through the end of week 8.
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