Test 4 - Question 1 0 points Save _ are molecules that...

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Question 1 0 points Save _______ are molecules that specifically interact with the binding sites of receptors. Substrates Activators Ligands Effectors Question 2 0 points Save Which of the following statements about transcription factors is false? Transcription factors can be composed of more than one polypeptide. Transcription factors can be activated by signal transduction pathways. Transcription factors bind to specific DNA sequences. Transcription factors are strictly nuclear proteins. Question 3 0 points Save How many subunits compose a G-protein? 1 2 3 4 Question 4 0 points Save Maternal genes are: expressed in the mother for use in the zygote. expressed from all the maternal chromosomes. expressed from the X chromosome. randomly silenced in each cell. Question 5 0 points Save The fertilized egg, also called the _______, has the capacity to become any embryonic or extra-embryonic cell type; it is therefore said to be _______. embryo, pluripotent zygote, totipotent embryo, omnipotent zygote, pluripotent
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Question 6 0 points Save When a cell divides into daughter cells with different identities and cell fates, the cell is likely: induced totipotent polarized differentiated Question 7 0 points Save Which of the following is NOT a second messenger? calcium cAMP DAG GTP Question 8 0 points Save The human immunodeficiency virus (HIV) is classified as a: retrovirus arbovirus phage provirus Question 9 0 points Save Gain of function mutations that result in cancer development are most commonly found in: tumor suppressor genes mutagens carcinogens oncogenes Question 10 0 points Save Genes that are transcriptionally silent are found in: euchromatin heterochromatin hemichromatin homochromatin Question 11 0 points Save Kinases catalyze:
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the formation of ATP from cAMP. the formation of cAMP from ATP. the addition of phosphates to their substrates. the removal of phosphates from their substrates. Question 12 0 points Save The process by which one tissue (or group of cells) affects the development of adjacent tissue is called: induction polarization differentiation morphogenesis Question 13 0 points Save The basic concept of the “two-hit” hypothesis is that, in order for a person to develop cancer,: either one tumor suppressor or one oncogene must mutate both copies of a tumor suppressor gene must mutate. one tumor suppressor and one oncogene must mutate.
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This note was uploaded on 03/19/2012 for the course BIO 101 taught by Professor Hendricks during the Spring '12 term at Murray State KY.

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Test 4 - Question 1 0 points Save _ are molecules that...

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