Why do some researchers argue for a major focus of research on microbial ecology and microbial diversity?
What will be an ideal response?
We have barely begun to comprehend the vast number of microbial species and to understand their importance. Without knowing the profound ways in which microbes contribute to the ecosystem, we may lose valuable species without even knowing it.
Crucial roles by microbes include ammonia-oxidizing. Bacteria play an essential role in the nitrogen cycle by converting ammonia in wastes and remains to nitrites. Without them, wastes would pile up and plants would not have access to the nitrogen they need to grow.
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Which of the following most correctly describes the whole-genome shotgun technique for sequencing a genome?
A) genetic mapping followed immediately by sequencing B) physical mapping followed immediately by sequencing C) cloning large genome fragments into very large vectors such as YACs, followed by sequencing D) cloning fragments from many copies of an entire chromosome, sequencing the fragments, and then ordering the sequences E) cloning the whole genome directly, from one end to the other
What mammals retain their young for a long period of development within the mother's uterus?
A. monotremes B. placentals C. marsupials
In what group of animals are monogamy and cooperative care of the young by two parents most common?
What will be an ideal response?
What, specifically, determines the sequence of
amino acids in a polypeptide of eukaryotes?
a. the DNA gene b. the introns c. the exons d. the initial mRNA transcript e. the tRNA anticodons