An increase in plant diameter results from cell division in which type of meristem?
A. intercalary meristem
B. lateral meristem
C. primary meristem
D. secondary meristem
E. stele meristem
B. lateral meristem
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Primary endosymbioses gave rise to ________ and secondary endosymbioses gave rise to ________
A) chloroplasts in algae / chloroplasts in plants B) mitochondria in eukaryotes / chloroplasts in eukaryotes C) chloroplasts and mitochondria in plants and red and green algae / chloroplasts in other eukaryotes D) chloroplasts and mitochondria in green and red algae / chloroplasts and mitochondria in diatoms
Chromosome “painting” distinguishes chromosomes by binding a fluorescent-tagged RNA strand
complementary to the denatured DNA of a specific chromosome. _________________ Indicate whether the statement is true or false.
A(n)________ ________ is a piece of DNA with all of the features necessary for chromosomal replication and that can carry large (up to 1000 kb) pieces of foreign DNA into a host organism.
What will be an ideal response?
Phase 1 of the creation of life on earth was _____________________. Phase 2 was the formation of self-replicating, information containing molecules. Phase 3 was the development of a membrane, enabling metabolism and creating the first cells.
a) the formation of RNA b) the formation of small molecules containing carbon and hydrogen c) the formation of DNA d) the increase in the amount of atmospheric oxygen. e) the formation of membranes so that later cells could develop