Biol 133 - Study guides, Class notes & Summaries

BIOL 133 Exam 1- Chapters 1-6 Part 1 of 1 - 1. Molecules move from a high to low concentration in 2. What is the pathway in which a protein moves through the endomembrane system? 3. The cell theory states 4. If two solutions are different, the one will the higher concentration of solutes is 5. What biological macromolecule provides the initial instructions for the primary sequence of proteins? 6. When the solute concentration in solution 1 is lower than the solute concentration in sol...

True or False. All genes are expressed continuously at the same levels. correct answer: FALSE True or False. Epigenetic changes alter the base sequence of a DNA molecule. correct answer: FALSE True or False. It is always an advantage to be a low stress (non-anxious) rat. correct answer: FALSE Epigenetic changes .... A. pass from one cell generation to the next but do not alter the DNA sequence. B. do not pass from one cell generation to the next but do alter the DNA sequence. ...

BIOL 133 Exam 1 Mitosis UPDATED ACTUAL Questions and CORRECT Answers Which of the following is true of mitosis? - CORRECT ANSWER - Creates genetically identical daughter cells (cloning process) Mitosis - CORRECT ANSWER - -cell division for growth and repair (NOT REPRODUCTION) All (most) cells from mitosis are genetical identical: Except gametes

Question 1 of 40 When a ligand binds to a G protein-linked receptor, the G protein 0.0/ 2.5 Points A. binds to a signal molecule B. releases a hormone C. is activated D. hydrolyzes GDP Feedback: Learning Objective: Compare internal receptors with cell-surface receptors Question 2 of 40 Which event is similar between prophase I and prophase? Select all that apply. 2.5/ 2.5 Points A. The nuclear membrane begins to disintegrate B. Spindle fibers appear C. Each chromosome is composed of...

Which of these traits will identical twins share? a. finger print b. birthweight c. belly button shape d. eye color correct answer: eye color what is the difference between a gene and an allele? correct answer: Genes - code for proteins / segmants of DNA Allele - variants of gene codes (different alleles code for different / altered proteins) Genes correct answer: DNA segments that serve as the key functional units in hereditary transmission. Allele correct answer: An alte...

True or False. Cancer is a contagious disease. A.True B.False correct answer: B. False only HPV is a virus that causes cancer True or False . Pollution is a greater risk for lung cancer than smoking correct answer: False True or False . People are not at risk of cancer if they have no family history correct answer: False True or False . Men can develop breast cancer correct answer: True True or False . Cancer death rates are increasing in the US to epidemic proportions corr...

Gene Determination correct answer: the idea that our genes solely determine who we are example: Huntingdon's disease, and sickle cell anemia both depend on genes did do genes determine everything? correct answer: NO, - alcoholism is not determined by genes complex traits = ? correct answer: Mendelian trais - complex traits do not follow a simple mendelian pattern of inheritance Mendelian traits correct answer: characteristics that are influenced by alleles at only one g...

Cell theory was proposed by: a. Anton van Leeuwenhoek and Robert Hooke b. Robert Hooke and Theodor Schwann c. Theodor Schwann and Rudolf Virchow d. Louis Pasteur and Anton van Leeuwenhoek - Answer c. Theodor Schwann and Rudolf Virchow Which of the following is not a function performed by proteins? a. Regulating cell division b. Storage of genetic information c. Intracellular transport d. Defense against foreign substances - Answer b. Storage of genetic information The oxy...

BIOL 133 Exam 2 - Chapters 7-11 Questions with Answers

BIOL 133 Exam 2-Chapters 7-11 Questions with Answers