Describe the formation of polypeptides from amino acids
What will be an ideal response?
Ans: A bond forms between the carboxyl functional group of one amino acid and the amino functional group of the other amino acid.
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Answer the following statements true (T) or false (F)
1. Saltwater fishes are hypoosmotic. 2. The number of aquatic species increases in acidic waters. 3. Temperature tends to decline with longitude. 4. Rain shadows are found on the windward sides of mountains. 5. Land next to the sea has more variable climate than land farther from the sea.
Spirilli are Gram-negative bacteria that possess internal flagella, which cause the entire cell to twist in a corkscrew
pattern.
Indicate whether the statement is true or false.Suppose that in plants, smooth seeds (S) is dominant to wrinkled seeds (s), and tall plants (T) is dominant to short plants (t). An F1 plant from a mating between homozygous plants that were tall/smooth and short/wrinkled was crossed to the short/wrinkled parent. What proportion of the progeny is homozygous for short and wrinkled alleles?
A) 1/2 B) 1/4 C) 1/8 D) 1/16 E) 0
All epithelial cells in the inner lining of the large intestine that are heterozygous for an APC mutation ____
a. are able to control cell division with the second copy of the APC gene b. become cancerous c. require additional mutations in downstream genes to become cancerous d. cause the transition from polyps into colon cancer e. can partially escape control of the cell cycle and lead to the formation of clusters of polyps