Hydrogenation is a chemical process that ____
a. turns liquid oil to solid fats
b. turns amino acids into proteins
c. turns DNA into lipids
d. creates stable alternative energy sources
e. creates unstable alternative energy sources
ANSWER: a
You might also like to view...
Which hormones stimulate the growth of mammary glands during pregnancy?
a. oxytocin and prolactin b. somatotropin and oxytocin c. prolactin and somatotropin d. estrogen and progesterone e. estrogen and oxytocin
A 30-year-old woman has a 1 in 3,000 chance of giving birth to a child with trisomy 21; however, a 48-year-old woman has a 1 in 9 chance. Which statement is the most likely explanation for why a woman has a higher probability of giving birth to a child with trisomy 21 as she ages?
a. Older women are more likely to mate with older men, and the older the man, the older the sperm. Older sperm are more likely to experience a non disjunction event during meiosis. B. Older women have older oocytes, and the older the oocytes, the greater the chance they will experience a nondisjunction event during meiosis. C. Older women have lived longer and have an increased percentage of toxins and oxidative damage in their bodies. Because these are the major causes of trisomy 21, the likelihood of giving birth to a child with trisomy 21 increases. D. Older women have older oocytes, and the older the oocytes, the greater the chance they will experience failure of cytokinesis during cell division.
What is the connection between sickle-cell anemia and malaria?
A) Both are dominant. B) Both are X-linked. C) Heterozygotes for malaria have some resistance to sickle-cell anemia. D) Heterozygotes for sickle-cell anemia have some resistance to malaria. E) Both are autosomal recessive.
Which of the following scientists proposed that geologic change occurred gradually due to small changes accumulating over long periods of time?
A. Georges-Louis Leclerc B. Erasmus Darwin C. Jean-Baptist's Lamarack D. James Hutton