If you were an anglerfish, which of the following techniques would you use to capture your prey?
a. You would remain visible in dark water, then use the glowing lure on your head to attract the prey and finally expand your oral cavity and suck your prey.
b. You would remain invisible in dark water, then use the glowing lure on your jaw to attract the prey and finally expand your oral cavity and suck your prey.
c. You would remain invisible in dark water, then use the glowing lure on your head to attract the prey and finally expand your oral cavity and suck your prey.
d. You would remain invisible in dark water, then use the glowing lure on your head to attract the prey and finally expand your whole body and suck your prey.
Answer: c. You would remain invisible in dark water, then use the glowing lure on your head to attract the prey and finally expand your oral cavity and suck your prey.
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The two-factor crosses performed by Mendel support the observation that
A. alleles for a given trait are distributed randomly among an individual's gametes independent of the alleles for other traits. B. traits that are encoded by genes on different chromosomes are never found within the same gamete. C. the F1 generation can display phenotypes in combinations different from those seen in the P generation. D. the F2 generation will only display phenotypes in the same combinations as the P generation. E. self-fertilization of the F1 generation will produce 100% heterozygous plants at both loci.
What enzyme(s) is/are responsible for removal of RNA primers and joining of Okazaki fragments?
A) DNA polymerase I B) DNA polymerase III C) DNA ligase D) DNA polymerase I and DNA ligase E) DNA polymerase III and DNA ligase
The hypothesis that suggests that clay may have served as the site of polymerization of both nucleic acids and proteins that might have joined to form the first protocells was proposed by
A. Stanley Miller. B. Graham Cairns-Smith. C. Thomas Cech. D. Aleksander Oparin. E. Sidney Fox.
Which of the following is not a goal of the public health system?
A) prevents B) diagnoses C) designs treatments, cures, or vaccines D) investigates E) works to reduce health problems in the community