Thalassemia is a very serious disorder that affects hemoglobin. It is caused by an autosomal recessive gene. If both a woman and a man are carriers, then what is the chance that they will have a child with the disease?
A) 100%
B) 75%
C) 50%
D) 25%
D
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Place the following events of bacterial conjugation in order from first to last.
1 - DNA replication 2 - an enzyme joins F factor DNA ends 3 - sex pilus shortens 4 - DNA transfer 5 - an enzyme cuts F factor DNA A. 1, 2, 3, 4, 5 B. 3, 5, 4, 2, 1 C. 5, 1, 3, 4, 2 D. 3, 5, 1, 4, 2 E. 3, 5, 1, 2, 4
The fibrous connective tissue layer covering the outside of a long bone is called the _____________________
Fill in the blank(s) with correct word
The "green revolution" refers to:
a. the global intensification of agricultural production. b. the political struggles in Ireland. c. the change in the distribution of worldwide poverty. d. the expansion of forests worldwide. e. the global environmental movement.
Order the following choices to reflect the organization of taxa, from the most general to the most specific, to test your understanding of levels of classification.
> Order > Phylum > Species > Domain