During the follicular phase of the menstrual cycle, a number of events occur which are listed below. Select the answer that places the events in the correct chronological order
Events:
1. the lining of the uterus thickens
2. granulosa cells secrete estradiol
3. FSH acts on granulosa cells
4. LH levels surge rapidly then decline
5. ovulation occurs
A. 3, 2, 1, 4, 5
B. 3, 1, 2, 4, 5
C. 1, 2, 3, 4, 5
D. 2, 4, 3, 1, 5
E. 4, 3, 2, 1, 5
A
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Honeybee workers spend their first few weeks as young adults tending the colony's brood, then later shift jobs to foraging for food outside the colony
When researchers fed the young bees candy spiked with the molecule ethyl oleate, the young bees continued to babysit and delayed the job shift to foraging. What would it require to demonstrate that ethyl oleate normally acts as a pheromone, not as an endocrine or paracrine signal? A. It would require demonstration that ethyl oleate binds to a receptor and initiates a series of responses. B. It would require demonstration that ethyl oleate is released by another individual of the same species. C. It would require demonstration that ethyl oleate is released by a predator and causes a behavioral change in the prey.
The normal sex chromosomal combination for a human female is
A. XYY. B. XY. C. YY. D. XX. E. XXX.
Given a strand of DNA that "reads" GATTACGATT, what would the sequence of bases on the opposite side "read"?
What will be an ideal response?
Which of the following processes occurs in eukaryotes but not prokaryotes?
A) DNA replication B) capping C) transcription D) translation E) gene regulation