Zip1 is a protein in yeast that is required for synaptonemal complex formation. Assuming synaptonemal complexes are required for meiosis in yeast, where do you predict these cells arrest (stop progressing through meiosis)?
A. Prometaphase of meiosis I
B. Metaphase of meiosis I
C. Metaphase of meiosis II
D.
Between the zygotene and pachytene stages
E.
Diakinesis
B
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How many different types of aminoacyl tRNA synthetases are there?
A. 2 B. 4 C. 20 D. 61 E. 64
Cells remain organized for long periods of time and new, organized cells form. Why does this not go against the Second Law of Thermodynamics?
What will be an ideal response?
Which of the following statements most accurately reflects samples from living organisms?
a. animal products have high fat and protein, plants have more sugar b. animal products have more sugar and starch, plants have more fat and protein c. animal products have only starch, plants have sugar and fat d. animal products have high fat and sugar, plants have sugar and starch
The plant tissue responsible for producing cells that thicken roots and stems is the
A. vascular bundle. B. intercalary meristem. C. apical meristem. D. lateral meristem. E. tracheid.