Which of the following statements is TRUE of highly repetitive sequences?
A. They play a vital role in transcription.
B. They play a vital role in translation.
C. They can be found millions of times in a eukaryotic genome.
D. They typically increase fitness of the organism.
E. They typically decrease fitness of the organism.
C. They can be found millions of times in a eukaryotic genome.
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If your mother has cystic fibrosis, which is caused by a recessive allele, the odds of your inheriting the
disease are
a. 1/4. b. 1/2. c. 3/4. d. 1. e. More information is needed to determine the odds.
The main organelles and structures involved by distinct function with milk production and secretion in their correct sequence are
A. nucleus, smooth ER, rough ER, nuclear pore, transport vesicle, Golgi apparatus, and vesicle for secretion. B. None of the answer choices is correct. C. nucleus, nuclear pore, rough ER, smooth ER, transport vesicle, Golgi apparatus, and vesicle for secretion. D. nucleus, nuclear pore, Golgi apparatus, rough ER, transport vesicle, smooth ER, and vesicle for secretion. E. nucleus, transport vesicle, rough ER, smooth ER, Golgi aparatus, and vesicle for secretion.
The ultimate source of all energy in a
terrestrial ecosystem is a. the organic matter in all the organisms of the ecosystem. b. electrons from water molecules. c. sunlight. d. ATP. e. inorganic mineral ions in the soil
Humans and many other species rely on soil resources for survival. Which of these human actions is least likely to result in depletion or damage of soil resources?
a) introduction of species into new habitats b) removal of forest trees due to logging c) burning of fossil fuels d) overgrazing and agriculture