When we first see chiasmata under a microscope, we know that _____

A) asexual reproduction has occurred
B) meiosis II has occurred
C) anaphase II has occurred
D) prophase I is occurring
E) separation of homologs has occurred


Answer: D

Biology & Microbiology

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The genetic information of an organism is coded within that organism's

a. DNA. b. carbohydrates. c. lipids. d. proteins. e. cell membranes.

Biology & Microbiology

A given section of DNA with the sequence AATGGCTAT is transcribed. What is the corresponding sequence on the complementary DNA strand?

a) UUACCGAUA b) UUGAACGUA c) GGTAACTGT d) TTACCGATA e) CCGTTAGCT

Biology & Microbiology

DNA replication ________

A) is a slow process that results in virtually no errors B) requires DNA polymerase and RNA polymerase C) is a very fast process that results in numerous errors D) requires the cooperation of over a dozen enzymes and other proteins

Biology & Microbiology

Studies using fissure water from gold-mining operations nearly 3 km deep indicate that the bacteria present use what for energy?

a. organic carbon b. sulfur c. iron d. H2

Biology & Microbiology