Due to the lack of moderate stress on the skeleton, a bedridden person is at risk of
A. rheumatoid arthritis and muscular degeneration.
B. osteoarthritis and tendon damage.
C. osteoporosis and muscle degeneration.
D. cartilage growth and a sprain.
E. anemia and cartilage degradation.
C. osteoporosis and muscle degeneration.
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After completing the nucleotide sequence of a microbial genome, computer translation of DNA sequence allows enzymes to be identified based on a short pattern of amino acid sequence called a contig that corresponds to the active site of the enzyme.
Answer the following statement true (T) or false (F)
When homologous chromosomes are aligned with each other and arranged as pairs in order of decreasing size, the resulting portrait is referred to as a(n) ____
Fill in the blank with the appropriate word.
Restriction endonucleases were discovered by ________.
A. Arber and Smith B. Jackson, Symons, and Berg C. Temin and Baltimore D. Boyer and Cohen
Internal fertilization is more advantageous than external fertilization because:a
internal fertilization permits cross-species fertilization.
b. internal fertilization is more open to chance. c. internal fertilization produces a motile egg. d. internal fertilization increases the life span of gametes. e. internal fertilization provides a protective environment for gamete fusion.