Which of these describes the type of reproduction that is most adaptive in a rapidly changing environment with many different parasitic diseases present?
A) asexual reproduction because the currently successful genotypes can reproduce quickly
B) asexual reproduction, because asexual reproduction uses less energy, which leaves more for each individual to adapt to the changing environment
C) sexual reproduction because the diversity of genotypes increases the likelihood that there is one which can survive in a new environment
D) sexual reproduction because this type of reproduction allows the production of a greater number of offspring thus providing more individuals to take advantage of any environmental challenges presented
C
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Allele-specific oligonucleotides (ASO) for the normal and disease alleles of a gene are in one section of a microarray. The disease is a recessive trait. If a probe made from an individual's genomic DNA hybridizes with both ASOs, what can be inferred about the individual?
A) The individual has two normal alleles. B) The individual has the disease. C) 50% of the individual's children are expected to be carriers. D) One of the individual's parents has the disease.
Which of the following are present in your liver cells?
A) enhancers of genes expressed in the liver B) enhancers of genes expressed in the kidney C) promoters of genes expressed in the liver D) promoters of genes expressed in the kidney E) All of the above are present in liver cells
What are the narrow, tapering cells found in the xylem tubes of drought-adapted plant species?
What will be an ideal response?
Which of the following is primarily responsible for cell elongation, gravitropism, and apical dominance implants?
A. Auxin B. gibberellin C. Cytokinin D. Phytochrome E. ethylene