Explain why in some cases, linked genes may be separated during crossing-over, yet at other times, linked genes are not affected by the recombination during meiosis
What will be an ideal response?
Linked genes are different genes located on the same chromosome. The key to whether linked genes will be influenced by a crossing-over event is how close the genes are to each other on the chromosome. The closer the genes, the less likely they will be separated during chromosome rearrangement. Conversely, the further away from each other, the more likely the genes will no longer be linked following crossing-over.
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What defines radial symmetry?
A. Only one plane of symmetry splits the organism into equal halves. B. Any plane of symmetry passing through the center of the organism splits it into equal halves. C. No planes of symmetry exist; the organism cannot be split into equal halves. D. Only four planes of symmetry passing through the center of the organism splits it into equal halves.
Which biome is a treeless plain that occurs
around the Arctic Circle? a. shortgrass prairie b. taiga c. cold desert d. cold grassland e. tundra
During extended periods of dehydration, tardigrades
a. enter suspended animation. b. migrate to the soil subsurface. c. enter small ponds and lakes. d. climb inside a plant leaf and encyst. e. none of these
RNA directly involved in producing proteins are ribosomal RNA (rRNA), _______ RNA (mRNA), and ________ RNA (tRNA).
Fill in the blank(s) with the appropriate word(s).