We typically think of phloem as transporting carbohydrates throughout vascular plants. What other substances can travel through the phloem? Select all correct choices
A. hormones
B. RNA
C. amino acids
D. ions
A,B,C,D
Biology & Microbiology
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Most imprinted genes are silenced. What is one exception to this rule?
A. H19 B. Igf-2 C. UBE3A D. SNRPN
Biology & Microbiology
A phenomenon known as ________ [two words] occurs under conditions where a selection pressure works against deleterious mutations, resulting in the corresponding decrease in the frequency of a closely linked neutral mutation
Fill in the blank(s) with correct word
Biology & Microbiology
Plants cannot fix nitrogen, but legumes are often called nitrogen fixers. Explain why this label is appropriate
What will be an ideal response?
Biology & Microbiology
Four of the following are involved in the reproduction of all viruses. Which one is not?
A. Attachment and penetration B. Replication and synthesis C. Assembly D. Latency E. Release
Biology & Microbiology