For a complex trait that is observed less frequently in a given sex in a given family, the recurrence risk for this trait is ____________________ for future children of that sex
Fill in the blank(s) with correct word
lower
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Butterflies are diploid organisms. In these animals, the sex of an individual is determined by Z and W chromosomes. Use
this information to answer the following question. Which chromosomes are carried by a normal female butterfly?
a. ZO b. ZW c. WW d. WO e. ZWW
Substances that cause birth defects are collectively called
A. androgens. B. prostaglandins. C. teratogens. D. follicle-stimulating hormones. E. None of the answer choices is correct.
________ is the study of populations
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The snottites described in the case study at the beginning of this section are colonies of bacteria, extremophiles that have some unique requirements for life processes
For example, they use sulfur from the hydrogen sulfide in the environment to capture energy. Although most life forms you are familiar with, including humans, don't use sulfur for this purpose, we do use another element to do the same thing. Which element do humans use for this energy conversion? Carefully examine the periodic table. A. carbon B. nitrogen C. hydrogen D. oxygen