In DNA and RNA, the polymers are polynucleotides and the monomers are _____________.
Fill in the blank(s) with the appropriate word(s).
Ans: Nucleotides
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Plants produce more seeds when they reproduce asexually than sexually. Yet most plants reproduce sexually in nature. What is the probable explanation for the prevalence of sexual reproduction? Sexual reproduction _____
A) is more energy efficient than asexual reproduction B) ensures genetic continuity from parents to offspring C) mixes up alleles contributing to variation in a species D) is not dependent on other agents of pollination
Which of the following is not a way chromatin remodeling complexes affect nucleosomes?
A. They can slide a nucleosome to a different location. B. They can modify the N-terminal tails of histones. C. They can eject a nucleosome from the DNA. D. They can replace the nucleosome with a new nucleosome that contains a variant histone. E. All of these choices are correct.
The ability to determine an object's location using high frequency sound waves is exhibited by
_____ amphibians underwater. _____ bats flying in darkness. _____ whales and dolphins at sea. _____ owls hunting at night.
A rural farm worker is brought to the clinic, experiencing a cluster of nodular skin lesions on his arm. Some of the lesions have ulcerated. The worker indicates that he frequently gets scratches and abrasions on his hands and arms and that the first nodule appeared several weeks after he had removed a sliver. The nodules have been progressing slowly for the past six weeks. What is the most likely infection?
A. Necrotizing fasciitis B. Candidiasis C. Subcutaneous mycosis D. Erysipelas