How many different biochemicals were detected in samples from potatoes?
a. 5
b. 2
c. 3
d. 4
a
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The villi in the human small intestine helps to maximize nutrient absorption
Indicate whether the statement is true or false.
In a tropical forest some leaves are dark green and some are light green. In a population of caterpillars, homozygous
dominant dark green caterpillars thrive eating the dark green foliage, while homozygous recessive light green caterpillars thrive eating light green foliage. However, heterozygous caterpillars of an intermediate color green are easily seen by birds and eaten, thus their numbers are far less than the dominants or recessives. This is an example of ____ selection.
a. directional b. stabilizing c. disruptive d. frequent e. mutational
How are mitosis and cytokinesis alike?
A. Both involve DNA synthesis. B. Both involve division. C. Both involve the nucleus. D. Both involve mitochondria. E. Both involve apoptosis.
A woman is found to have forty-seven chromosomes, including three X chromosomes. Which of the following describes her expected phenotype?
A) a female with masculine characteristics such as facial hair B) an apparent male who is sterile C) healthy female of slightly above-average height D) a sterile female