The amino acids in each molecule are linked by peptide bonds. What parts of the amino acids are involved in these bonds?
a. the carbon atom in one amino acid and the nitrogen atom in the second aminoacid
b. the carbon atom in one amino acid and the sulfur atom in the second amino acid
c. the carbon atom in one amino acid and another carbon atom in the secondamino acid
d. the carbon atom in one amino acid and a phosphorus atom in the second aminoacid
a
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Classification based on location
What will be an ideal response?
Which of the following most often should lead to allopatric speciation?
A) Habitat isolation B) Behavioral isolation C) Gametic incompatibility D) Mating time differences
Explain how molecules other than glucose can be used as energy sources
A) They can't; cellular respiration is limited to glucose. B) They have their own unique metabolic pathways. C) They are modified first and then enter the same metabolic pathway as glucose. D) Fats, proteins, and other carbohydrates are similar enough to glucose that they utilize the same metabolic pathway without any modifications.
A purebred plant that produces yellow seeds is crossed with a purebred plant that produces green seeds. The F1 plants have yellow seeds. What is the expected phenotypic ratio of seed color of the offspring of an F1 × F1 cross?
A) 1:2:1 B) 2:1 C) 3:1 D) 9:3:3:1