Embryonic stem cells can potentially be used to treat diseases. which of the following statements is FALSE regarding embryonic stem cells?
Answer: They are pluripotent
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In Mendel's experiments on seed color in pea plants, when a dominant yellow seed-bearing plant was crossed with a recessive green seed-bearing plant, what was the approximate phenotypic ratio among the F2 generation?
A. 1 yellow: 3 green B. 1 yellow: 1 green C. 3 yellow: 1 green D. all yellow E. 9:3:3:1
What is a photosynthetic stem that stores water and is found in succulent plants in the desert?
a. bulbs b. tubers c. stolons d. cladodes e. corms
The concept that a set of three nucleotides specifies a particular amino acid provides the basis for
A) the one-gene-one-enzyme hypothesis. B) the one-gene-one-polypeptide hypothesis. C) the genetic code. D) biochemical reactions among nucleic acids. E) All of these
The Grants' finch research included morphological, geographic, genetic, and ecological data. Which of these could not be directly determined by examining the birds as they tagged them?
A) Morphological measurements could be directly made of bird size and weight in addition to measurements on beak depth. B) Geographic data could be directly recorded according to where on the island the bird was found. C) Complete genetic makeup could be directly determined though analysis of phenotypes. D) Ecological data could be gathered by direct observation of food preference.