Polygenic traits such as height or weight are often influenced by the environment of the organism.
Answer the following statement true (T) or false (F)
True
It is true that polygenic traits such as height or weight are often influenced by the environment of the organism.
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The streamlined shape of the dolphin, seal, and other swimming animals is most important for which of the following reasons?
A. reducing drag from the water they must swim through B. overcoming the forces of gravity acting on the animal C. reducing the density of the water they must swim through D. maintaining a low speed in the dense medium E. All of the choices for this question are correct
Matching I. Choose the most appropriate answer for
each. 1. ___ colchicine 2. ___ deletion 3. ___ duplication 4. ___ inversion 5. ___ monosomy 6. ___ translocation 7. ___ triploidy 8. ___ trisomy A. 3n; generally sterile B. a chromosome segment is permanently transferred to a nonhomologous chromosome C. (2n – 1); a zygote deprived of a chromosome D. a repeat of a particular DNA sequence in the same chromosome or in nonhomologous ones E. (2n + 1); three chromosomes of the same kind are present in a set of chromosomes F. a piece of the chromosome is inadvertently left out during the repair process G. inhibits microtubule assembly; used in karyotyping H. a chromosome segment that has been cut out and rejoined at the same place, but backward
The closer together two genes are on a chromosome,
A) the more likely there will be a recombination event between them. B) the less likely there will be a recombination event between them. C) the greater the chance that a double crossover will occur between them. D) the more likely they are to be epistatic. E) the less likely they are to be good genetic markers.
Which of the following characteristics, if observed in an unidentified green organism, would make it unlikely to be a charophyte?
A) phragmoplast B) peroxisome C) apical meristem D) chlorophylls a and b E) rosette cellulose-synthesizing complex