Put the following steps of the Calvin cycle in the correct order:
1. carbon fixation
2. regeneration of RuBP
3. release of G3P
4. reduction
A) 1, 2, 3, 4
B) 1, 3, 4, 2
C) 1, 4, 3, 2
D) 4, 1, 2, 3
Answer: C
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When members of the gene pair carried by an individual are not alike, the individual is said to be ____________________
Fill in the blank(s) with correct word
What would a drug that caused sodium to leak into a neuron do?
A) It would cause the outside of the neuron to become more positive. B) It would trigger an action potential in the neuron. C) It would cause the inside of the neuron to become more negative. D) It would cause potassium to move into the neuron as well.
DNA replication occurs during which phase of the cell cycle?
a. anaphase b. interphase c. prophase d. telophase
An extremely rare occurrence in humans is a multiple pregnancy with the embryos at different stages due to fertilization weeks apart. What mechanism normally prevents this from happening?
A. The embryo's secretion of FSH and LH maintains the corpus luteum, keeping estradiol and progesterone high until the placenta takes over secretion of these hormones. B. The follicle's secretion of polar bodies maintains the fimbriae, keeping estradiol and progesterone high until the fallopian tube takes over secretion of these hormones. C. The embryo's secretion of GnRH maintains the corpus luteum, keeping FSH and LH high until the placenta takes over secretion of these hormones. D. The embryo's secretion of hCG maintains the corpus luteum, keeping estradiol and progesterone high until the placenta takes over secretion of these hormones.