Which of the following is a correct sequence of cells in oogenesis?
a. oogonium ? primary oocyte ? secondary oocyte
b. oogonium ? secondary oocyte ? primary oocyte
c. primary oocyte ? secondary oocyte ? oogonium
d. primary oocyte ? oogonium ? secondary oocyte
e. secondary oocyte ? primary oocyte??oogonium
A
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The valve between “C” and “E” is the
a. right AV valve. b. right semilunar valve. c. left AV valve. d. left semilunar valve. e. aortic valve.
The bulk of a plant is made from ________
A) minerals from the soil obtained by the roots of a plant B) sugars from the soil obtained by the roots of a plant C) the sugars made in photosynthesis, which were made from carbon dioxide D) oxygen absorbed by the pores in leaves
In mitosis, three major check points are built into the cell cycle. These checkpoints make sure that certain criteria are met before proceeding to the next step
Explain the major responsibilities of the checkpoints between the following steps: between G1 to S, between G2 to mitosis, and between metaphase to anaphase.
What is used to help the primary stain penetrate the cell in both the acid-fast stain and endospore stain?
A) Alcohol B) Heat C) Water