The gametophyte of a fern is
(a) haploid.
(b) photoautotrophic.
(c) a structure that produces eggs and/or sperm.
(d) all of the above.
(b) photoautotrophic.
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Which of the following is a plant behavior that is influenced by light?
A. solar tracking B. phototropism C. flowering D. seed germination E. All of the choices are true
Removal of introns, addition of a poly-A tail and addition of a guanine cap are all events that occur during:
a. protein folding. b. transcription. c. replication. d. post-transcriptional modification. e. translation.
When a round fruit plant is crossed with a long fruit plant their offspring are oval. What is the best explanation for this scenario?
A. pleiotropic inheritance B. polygenic inheritance C. incomplete dominance D. X-linked inheritance
Most rainfall returns water directly to ____.
A. lakes B. rivers C. groundwater D. oceans E. plants