In flowering plants, gametes are produced by the process of mitosis
1.True
2.False
1
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The main reason polar regions are cooler than the equator is that _____
A) there is more ice at the poles B) sunlight strikes the poles at a lower angle C) the poles are farther from the sun D) the polar atmosphere is thinner and contains fewer greenhouse gases E) the poles are permanently tilted away from the sun
Because the TCA cycle is associated with degradation and synthesis, the pathway is said to be
A) anabolic. B) amphibolic. C) catabolic. D) bipolar. E) amphipathic.
What is RNA interference?
A. When an RNA virus blocks the DNA replication of the host cell. B. When tRNA attaches to the ribosome and blocks its movement along the mRNA. C. When small RNAs form double-stranded RNA molecules that can regulate gene expression. D. When proteins block the transcription of DNA in the nucleus.
Carbon dioxide is transported in human blood primary in which of the following ways?
A. As oxyhemoglobin B. As bicarbonate ions C. Attached to plasma proteins D. Attached to the amino groups of hemoglobin E. Attached to the heme groups of hemoglobin