Which of the following bioenergetic processes CANNOT occur in hyperthermophiles?
A) chemoorganotrophy
B) chemolithotrophy
C) photosynthesis
D) chemoorganotrophy, chemolithotrophy, and photosynthesis
Answer: C
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____ have (has) a response time of about a
week.
a. Innate and adaptive immunities b. Adaptive immunity c. Innate immunity d. Neither innate nor adaptive immunities e. Complement immunity
Which of the following enzymes join the
paired sticky ends of DNA fragments? a. reverse transcriptases b. restriction enzymes c. DNA ligases d. DNA polymerases e. polynucleotide kinases
The different seasons of the year are caused by the
A. gravitational pull of the moon as it travels around the Earth. B. tilt of the Earth's axis as the Earth travels around the Sun. C. rotation of the moon around the Earth. D. rotation of the Earth on its axis. E. rotation of the Earth around the Sun.
In Drosophila, the allele red eyes (bw+) is dominant to the allele for brown eyes (bw). At another gene locus on the same chromosome, the allele for thin wing veins (hv+) is dominant to the allele for heavy wing veins (hv). Flies homozygous for bw and hv+ are crossed to flies homozygous for bw+ and hv to obtain doubly heterozygous F1 progeny.What would be the results of a test cross with the F1 flies?
A. 1 brown eye, heavy wing veins: 1 red eye, thin wing veins B. 1 brown eye, heavy wing veins: 2 red eye, thin wing veins: 1 red eye, thin wing veins C. 1 brown eye, thin wing veins: 2 red eye, thin wing veins: 1 red eye, heavy wing veins D. 1 brown eye, thin wing veins: 1 red eye, heavy wing veins