In the early part of the twentieth century, Nilsson-Ehle and others described experiments showing that multiple loci may be involved in the inheritance of certain traits. Such patterns are often called ________
A) continuous traits B) polygenic traits
C) indeterminate traits D) threshold traits
Answer: B
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Who is credited with developing a vaccine against chicken cholera?
A. Lister B. Koch C. Jenner D. Pasteur
Members of the ____ lizard genus are commonly used as model systems for studies of ecology and evolutionary
biology.
a. Ichthyostega b. Anolis c. Dunkleosteus d. Eusthenopteron e. Archaeopteryx
The relationship between global warming and greenhouse gases is ___
a. the more greenhouses gases, the less heat is trapped from earth's surface b. the two are unrelated c. the more methane, the less heat is trapped from Earth's surface d. the more oxygen, the less heat is trapped from Earth's surface e. the more greenhouse gases, the greater amount of heat trapped from Earth's surface
The smooth ER is the primary site for the synthesis of phospholipids and cholesterol needed to make ____
a. DNA b. ATP c. ribosomes d. hormones e. cell membranes