What explains the viability of individuals with aneuploidies for the sex chromosomes?
a. Sex chromosomes carry less information than autosomes.
b. The lack of crossing-over between the X and the Y chromosomes.
c. Sex chromosomes are smaller than most autosomes.
d. The information on sex chromosomes is duplicated on the autosomes.
e. Dosage compensation, by which one X chromosome per cell is inactivated
e
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What is an X-linked inheritance pattern? Use a specific example to explain the role of the father and mother in this
unique inheritance pattern and note the differential impact on male and female offspring. What will be an ideal response?
The ____ are very common arthropod Paleozoic fossils, and are extinct today
a. phoronids b. trilobites c. tardigrades d. moss animals e. lophophorate animals What will be an ideal response?
In a nutritionally balanced diet, the main source of energy is _______.
a) proteins b) carbohydrates c) lipids d) vitamins and minerals
Which of the following best describes a theory?
A. an experiment that is repeated over and over again B. a tentative explanation of natural phenomena C. a comprehensive explanation of natural phenomena supported by abundant evidence D. a well-known fact