Breakpoints in chromosome can lead to mutant phenotypes when they occur in the middle of a gene
Indicate whether the statement is true or false
TRUE
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What is a photosystem?
A. A double-membrane organelle containing thylakoids B. Clusters of pigments and proteins that capture light energy C. Stacks of thylakoids D. A leaf or any green part of the plant
Most eukaryotic cells contain mitochondria, but a few single-celled eukaryotic organisms found in oxygen-free environments do not
Which of the following observations led biologists to reject the hypothesis that these mitochondria-free eukaryotes evolved BEFORE the endosymbiotic event that established mitochondria in other eukaryotes? A. All eukaryotes exhibit some sort of energy utilization. B. Some eukaryotes don't have mitochondria, they have chloroplasts instead. C. The nuclear genome of these mitochondria -free eukaryotes contains relics of mitochondrial genes. D. All eukaryotes have remnant chloroplast genes.
Which of the following is NOT a process of aerobic respiration?
A. citric acid cycle B. glycolysis C. acetyl CoA formation D. oxidative phosphorylation E. lactate fermentation
The resistance to reinfection with measles virus following recovery from measles infection is called __________.
A) artificial immunity B) natural selection C) passive immunity D) innate immunity E) active immunity