____ At which stage of mitosis are chromosomes usually photographed in the prepa
ID: 82237 • Letter: #
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____ At which stage of mitosis are chromosomes usually photographed in the preparation of a karyotype? A) prophase B) metaphase C) anaphase D) telophase E) interphase _____ Starting with a fertilized egg (zygote), a series of seven cell divisions would produce an early embryo with how many cells? A) 16 B) 32 C) 64 D) 128 E) 256 _______ At which phase are centrioles beginning to move apart in animal cells? A) telophase B) anaphase C) prometaphase D) metaphase E) prophase _________ If there are 50 centromeres in a cell at anaphase, how many chromosomes are there in each daughter cell following cytokinesis? A) 10 B) 20 C) 25 D) 50 E) 100 _________ Movement of the chromosomes during anaphase would be most affected by a drug that A) reduces cyclin concentrations. B) increases cyclin concentrations. C) prevents elongation of microtubules. D) prevents shortening of microtubules. E) prevents attachment of the microtubules to the kinetochore ________ When Thomas Hunt Morgan crossed his red-eyed F_1 generation files to each other, the F_2 generation included both red. - and white-eyed files. Remarkably, all the white-eyed files were male. What was the explanation for this result? A) The gene involved is on the Y chromosome. B) The gene involved is on the X chromosome. C) The gene involved is on an autosome, but only in males. D) Other male-specific factors influence eye color in flies. E) Other female - specific factors influence eye color in files.Explanation / Answer
Q13: Metaphase. Chromosomes are highly visible and condensed.
Q14: 128 CELLS.This can be calculated by a general formulae 2n. Where two is the number of cells formed upon each division, and n is the number of divisions.
Q15: Prophase.
Q16: 25
Q17: prevents Shortening of microtubules
Q18; The gene present is on X chromosome.
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