Which of the following mammalian traits exhibits a relatively low h2 value?

A) birth weight in cattle B) litter size in mice
C) tail length in mice D) milk yield in cattle


Answer: B

Biology & Microbiology

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Which of the following is a possible human genotype that could result from nondisjunction of the sex chromosomes in one of the parental gametes?

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All of the following statements are true

concerning mycorrhizae EXCEPT that a. the fungus may penetrate into root cells. b. mycorrhizae increase the surface area for absorption. c. roots obtain minerals from the fungus. d. the fungus provides the plant with nitrogenrich compounds. e. it is a mutualistic symbiosis

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A person with this lung disease experiences a loss of elastic tissue, which makes it hard to exhale

A) pneumonia B) tuberculosis C) emphysema D) influenza

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Food poisoning is often caused by a bacterium called ________

A) Salmonella B) Staph C) MRSA D) Bacillus anthracis

Biology & Microbiology