After completing the nucleotide sequence of a microbial genome, computer translation of the DNA sequence allows enzymes to be identified based on a short pattern of amino acid sequence called a contig that corresponds to the active site of the enzyme.
Answer the following statement true (T) or false (F)
False
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Four of the five answers listed below pass through the atmosphere during their cycling. Select the exception
a. carbon b. oxygen c. nitrogen d. phosphorus e. water
In an allopolyploid organism, what is true regarding the fertility of interspecies hybrids?
A) Interspecies hybrids are fertile due to nonhomology of chromosomes. B) Chromosome doubling and nondisjunction in gametocytes can lead to homologous chromosome pairing, disjunction, and fertile hybrids. C) Interspecies hybrids will be fertile so long as there is an even number of chromosomes in the offspring. D) Mitotic nondisjunction results in haploid cells. E) Meiotic nondisjunction produces three haploid gametes and one diploid gamete.
The washing of fertilizer into bodies of water can lead to all of the following EXCEPT:
What will be an ideal response?
Each of the following statements concerning peptidoglycan is correct EXCEPT:
A. It has a backbone composed of alternating units of N-acetylmuramic acid and Nacetylglucoseamine B. It Cross-links between the tetrapeptides involve D-alanine C. It can be degraded by lysozyme D. It is thinner in gram-positive than in Gram-negative bacteria