What type of gene is c-src (cellular-src)?

A. oncogene
B. tumor suppressor
C. proto-oncogene
D. growth factor


C

Biology & Microbiology

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In legumes, it has been shown that thigmotropism is correlated with _____

A) abscisic acid (ABA)-stimulated closing of guard cells caused by loss of K+ B) rhythmic opening and closing of K+ channels in motor cell membranes C) senescence (the aging process in plants) D) flowering and fruit development

Biology & Microbiology

Cell-mediated responses work against _____

a. intracellular pathogens b. extracellular pathogens c. cancerous cells d. both intracellular pathogens and extracellular pathogens e. both intracellular pathogens and cancerous cells f. intracellular pathogens, extracellular pathogens, and cancerous cells

Biology & Microbiology

Donn and Sabine have three children: identical twin sons (Gerard and Gerome) and a daughter (Eliza). To which

family member would Gerard's MHC genes be the most similar?

a. Donn b. Sabine c. Eliza d. Gerome

e. Gerome, Eliza, and Gerard have identical MHC genes

Biology & Microbiology

This summer, you are returning to the research station in Costa Rica to follow up on the population of butterflies you have been studying. You are disappointed to find that there are fewer this year than last. In fact, at dinner your friends studying frogs and birds are complaining about the same thing. What type of influence do you suspect?  

A.  a density-independent effect like an introduced predator B.  a density-dependent effect like environmental disruption C.  a density-independent effect like environmental disruption D.  a density-dependent effect like an introduced predator Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about factors that affect many different populations of organisms? What other information is related to the question?  Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?  

Biology & Microbiology