If meiosis did not occur in sexually reproducing organisms,
a. growth of the zygote would be halted.
b. mitosis would be sufficient.
c. gametes would be haploid.
d. the chromosome number would double in each generation.
e. eggs would be haploid, but sperm would be diploid.
D
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Heterocysts
A. are found in nitrogen-fixing cyanobacteria. B. are used to protect nitrogenase. C. produce catalase. D. generate oxygen. E. are found in nitrogen-fixing cyanobacteria AND are used to protect nitrogenase.
Triglycerides are ____
a. carbohydrates b. nucleotides c. proteins d. neutral fats e. amino acids
A prophage:a
is phage DNA that is integrated into viral DNA. b. is phage DNA that is integrated into bacterial DNA. c. replicates only when the eukaryotic cell it infects replicates. d. is an underdeveloped lytic virus. e. is a bacterial cell about to lyse
Probes used for detecting genetic sequences are frequently composed of
A) agarose. B) synthetic nucleic acids and labeled conjugates, such as fluorescent dyes. C) restriction enzymes. D) silicon chips. E) nitrocellulose.