Which organism is not correctly matched to its energy source?
A) Chemoheterotroph — glucose
B) Photoheterotroph — light
C) Chemoautotroph — NH3
D) Photoautotroph —CO2
E) Chemoautotroph — Fe2+
D) Photoautotroph —CO2
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Whether during mitosis or meiosis, sister chromatids are held together by proteins referred to as cohesins. Such molecules must _____
A) persist throughout the cell cycle B) be removed before meiosis can begin C) be removed before sister chromatids can separate D) reattach to chromosomes during G1 E) be intact for nuclear envelope re-formation
Diploid somatic cells of elephants have 56 chromosomes. If nondisjunction of one of an elephant's chromosomes occurs in meiosis I, the resulting sperm are expected to have the chromosome complement:
A. 28, 28, 28, 28 B. 28, 28, 29, 27 C. 29, 29, 27, 27 D. 29, 29, 28, 28 E. 56, 56, 57, 55
Colonies of ants, termites, and some other insects, as well as naked mole rats, are __________ and thus include sterile workers who care for the reproducing members of the group.
Fill in the blank(s) with the appropriate word(s).
True or False: Persistence can be inherited and gained by genetic transfer
a. TRUE b. FALSE