{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

BIOL 121 (2011) Fall Exam 3 + Key

The relationship between genes p and n is an example

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: is composed of both RNA and proteins. 2 BIOL 121 Exam 3 12/5/2011 (4 pts) NAME: 3 BIOL 121 NAME: Exam 3 12/5/2011 4) Porcupines with the dominant allele, P, have long spines, whereas homozygous recessive pp porcupines have short spines. At a different locus, homozygous recessive nn porcupines have no spines at all. The relationship between genes P and N is an example of A. pleitropy B. codominance C. incomplete dominance D. dominance E. epistasis (4 pts) 5) Green leaves (B) are dominant to purple (b) and short plants (T) are dominant to tall plants (t). What fraction of the progeny of the cross BbTt × BBtt will have green leaves and be tall? A. 9/16 B. 1/16 C. 1/2 D. 3/16 E. 3/8 (4 pts) 6) In the process of translation, release factor A. is a specialized tRNA. B. is a protein that shares similarities in size and shape with a tRNA. C. releases RNA polymerase so that translation can initiate. D. catalyzes the removal of tRNA from f- Met. (3 pts) 7) Evolution requires ___________ of which __________ is the ultimate source. A. competition; mate choice B. natural selection; competition C. epistasis; gene flow D. genetic variation; mutation E. phenotypic variation; genetic variation (4 pts) 4 BIOL 121...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern