BIOL 1090 Study Guide - Final Guide: Spindle Apparatus, Cyanine, Dna Replication

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22 Nov 2015

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Cd1 is a family of gyloproteins that contain single transmembrane domain. They display lipid antigens and trigger immune response: what type of motor protein is responsible for carrying vesicles containing cd1 from the. Microtubules and microfilaments: explain what is meant by polarity in terms of the cytoskeleton. Through a process known as three levels of condensation: dna is a polymer. 11 nm dna fiber: an additional supercoiling of 11 nm dna fiber to produce 30 nm fiber. Replication mutation and expression of gene: describe introns and exons : introns are non coding sequences located between coding sequences they are usually not present in mature mrna. Exons are noncoding and coding sequences that are present in mature mrna after splicing: what are the differences in the initiation, elongation, termination and processing of transcripts between prokaryotes and eukaryotes. The consequence is that eukaryotes have more control in regulation of expression. 10 and 35 bp upstream regions of mrna start site.

Related Questions

1)Describe the directions in which the two motor proteins, kinesin and dynein, travel along a microtubule. Which of the two proteins moves materials towards the Golgi and which moves materials away from the Golgi? Lastly, what is the speed of kinesin dependent on?

2)What are microfilaments crucial for? How do they self-assemble? Which end do they prefer to elongate from?

3)Describe what types of filaments are in each of the bands of the sarcomere. As a muscle fiber is shortened, describe what happens to each of the bands in the sarcomere as the Z lines move inwards.

4)Describe the role of calcium ions in muscle contraction.

5)List the various types of actin-binding proteins

6) A. What are 3 functions of the cytoskeleton?

B.What are the three filaments that compose the cytoskeleton, and what are they composed?

7)How do they see the internal structures of cells in the microscope? What do proteins get labeled with?

8)Myosin II action (Figure 9.61) differs from that of kinesin (Figure 9.15) in that one of the kinesin heads is always in contact with a microtubule, whereas both myosin heads become completely detached from the actin filament. How are these differences correlated with the two types of motor activities in which these proteins engage?

9)If a myofibril were pulled so that the sarcomeres increased in length by approximately 50 percent, what effect would you expect this to have on the contractile ability of the myofibril? Why? What effects would this have on the H, A, and I bands?

10)Because cytoplasmic vesicles are seen to move in both directions within an axon, can you conclude that some microtubules are oriented with their plus end facing the axon terminus and others oriented with the opposite polarity? Why or why not?

BIOL 1090 Study Guide - Final Guide: Spindle Apparatus, Cyanine, Dna Replication

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