The genetic difference between familial retinoblastoma and sporadic retinoblastoma appears to be based on those with the familial form starting out being ________, whereas those with the sporadic form start out being ________
Fill in the blank(s) with correct word
heterozygous for the retinoblastoma gene; homozygous normal
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During which phase will the homologous chromosomes be pulled apart?
a. Telophase I b. Metaphase I c. Anaphase I d. Anaphase II e. Prophase II
Which statement best describes the cell theory?
a. All living organisms grow and develop. b. All living organisms respond to stimuli. c. All living organisms are composed of basic units called cells. d. All living organisms can move from one place to another in order to find food or to escape predators. e. All living organisms can form a population of organisms that is able to adapt to the environment
Geographic isolation is not a factor in sympatric speciation.
a. true b. false
What is phagocytosis? What does it involve?
What will be an ideal response?