Vast numbers of microorganisms are being genetically characterized without culturing them in the laboratory today through ________.
A. metagenomic sequencing
B. mass spectrometry and proteomics
C. column chromatography
D. polymerase chain reaction
Answer: A
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When choosing among competing cladograms, the preferred hypothesis is the one that is the simplest for all characters and their states. This is also known as
A. the maximum likelihood approach. B. the principle of parsimony. C. the Bayesian method. D. the molecular clock. E. the cladistic approach.
Answer the following statements true (T) or false (F)
1.Vegetative edible plant parts include roots, fruits, stems, and tubers. 2.If a plant exhibits a pattern of indeterminate growth, it stops growing when it reaches mature size. 3.Herbaceous plants are those that contain little or no woody tissue. 4.The three main types of tissue formed by plant cells are ground tissue, dermal tissue, and vascular tissue. 5.The epidermis of a plant leaf is usually many layers thick and carries out most of the photosynthesis in a leaf.
Unequal crossing over often results in the formation of duplicate copies of existing genes. At what phase of meiosis can unequal crossing over occur, and why does this happen?
What will be an ideal response?
Hemophilia is an X-linked trait caused by the allele h. About 1 in 10,000 males (0.0001) has hemophilia. The
frequency of the h allele in males is therefore _____________________. Fill in the blank(s) with the appropriate word(s).