What type of bonds are formed between adjacent amino acids
A. Glycosylic
B. Ester
C. Peptide
D. Disulfide
E. Phosphate
Ans: C. Peptide
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Indicate whether the statement is true or false.
Hematocrit is the percentage of red blood cells in the blood. In adult humans, hematocrit is roughly 40-45%, but it can be much higher or lower in other animals. Consider the Weddell seal, a mammal that can dive and hold its breath underwater for upwards
of 80 minutes. What is the hematocrit level of a Weddell seal, and why? A) It is likely lower than that of an adult human because the seal needs access to less oxygen when diving. B) It is likely lower than that of an adult human because the seal needs access to more oxygen when diving. C) It is likely higher than that of an adult human because the seal needs access to less oxygen when diving. D) It is likely higher than that of an adult human because the seal needs access to more oxygen when diving.
Which of the following is an example of heredity?
A) Both moths and birds have wings and can fly. B) Doberman pinschers and boxers have similar body shapes. C) Flying squirrels have a different mechanism of flight than mosquitos. D) Dalmation dogs all have spots. E) Flies and molluscs both have eyes.
Which of the following statements is true of bacterial plasmids?
A. They are always found in the nucleoid. B. They can replicate autonomously. C. They carry genes for essential metabolic functions. D. They are small circular DNA molecules. E. They are small circular DNA molecules that can replicate autonomously.