Secondary endosymbiosis refers to
a. the chloroplast origin in primitive eukaryotic cells containing mitochondria.
b. the stable retention of chloroplasts after the engulfment of red or green algae.
c. the origin of hydrogenosomes.
d. all of the above.
Answer: B
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The variable in the butterfly experiment is
a. butterfly wing pattern color. b. butterfly species. c. bird predator species. d. rainforest region used. e. percentage of survivors.
cDNA libraries contain:a
single stranded DNA. b. DNA synthesized with the use of DNA polymerase. c. DNA synthesized from and complementary to an mRNA template.
d. introns and exons. e. genomic DNA
Answer the following questions true (T) or false (F)
1. Protozoa are also called prokaryotes. 2. Single-celled organisms known as diatoms have glasslike walls and are a type of algae. 3. The use of Saccharomyces as a probiotic is an example of the application of biotechnology.
The percentage of recombinant phenotypes resulting from fertilization involving recombinant gametes is called ___________.
A. recombination frequency B. a linkage map C. mitosis D. genetic recombination