Biology and Genetics

1. True false correction questions. Mark as T if true and F if false. If a state

1. True false correction questions. Mark as T if true and F if false. If a statement is false, you will need to correct it in order to receive credit for your answer. There could …

1. True or False (and explain): Since there are about 1013 cells in an adult hum

1. True or False (and explain): Since there are about 1013 cells in an adult human, and about 1010 cells die and are replaced each day, we become entirely new people every three y…

1. True or False : A postsynaptic potential is excitatory (EPSP) if the ion invo

1. True or False: A postsynaptic potential is excitatory (EPSP) if the ion involved has a reversal potential (Eion) that is more depolarized than the resting membrane potential (V…

1. True or False. Owl pellets are a natural part of an owl\'s tecal matter. 2. T

1. True or False. Owl pellets are a natural part of an owl's tecal matter. 2. True or False. Owls are omnivores, which eat a variety of small mammals and birds when they are avail…

1. True or False... Movement of injested food through the digestive system is un

1. True or False... Movement of injested food through the digestive system is unidirectional in animals using alimentary canals and in animals using gastrovascular cavities. 2. Se…

1. True or False: An opportunistic pathogen can be a commensal organism. 2. What

1. True or False: An opportunistic pathogen can be a commensal organism. 2. What is an adjuvant? a) A molecule that increase the shelf life of the vaccine b) A molecule that incre…

1. True or False: At rest, the lowest blood volume is typically found in the hea

1. True or False: At rest, the lowest blood volume is typically found in the heart itself. 2. A vein that does not drain blood into the inferior vena cava is the: a.) Hepatic vein…

1. True or False: Beneficial mutations arise in response to the introduction of

1. True or False: Beneficial mutations arise in response to the introduction of selective pressure to allow organisms to survive? 2. Which of the following explains why organisms …

1. True or False: Doppler radar can always detect whether there is a tornado on

1. True or False: Doppler radar can always detect whether there is a tornado on the ground. False 2. The image below shows radar information for radial velocity (left, velocities …

1. True or False: The aorta is the wall that separates the ventricles of the hea

1. True or False: The aorta is the wall that separates the ventricles of the heart. True False 2. True or False: The most effective treatment for ventricular fibrillation is defib…

1. True or False: Toxicology has a strong early history of individuals who were

1. True or False: Toxicology has a strong early history of individuals who were infamous as poisoners (Points: 1) True False 2. Toxicant injury always results in permanent changes…

1. True or False: a. Many tumor suppressor genes are involved in the detection a

1.      True or False: a.      Many tumor suppressor genes are involved in the detection and repair of DNA damage. b.      Protein kinases are proteins that add phosphates to othe…

1. True or False? Eight cases have been heard by the U.S. Supreme Court opposing

1. True or False? Eight cases have been heard by the U.S. Supreme Court opposing components of the ACA. 2. True or False? Healthcare delivery in the U.S. is very similar to health…

1. True or False? Environmental wind shear with a magnitude of 15 m/s and a shea

1. True or False? Environmental wind shear with a magnitude of 15 m/s and a shear depth of less than 3 km suggests that supercell formation is very likely. 2. True or False? A col…

1. True or False? The earth is approximately 4.6 billion years old, nebula hypot

1. True or False? The earth is approximately 4.6 billion years old, nebula hypotheses explains the origin of the solar system. 2. True or False? The Big Bang theory explains the e…

1. True or false? Even though no object with mass, and no information, can trave

1. True or false? Even though no object with mass, and no information, can travel faster than the speed of light, in principle an astronaut could reach a star that is 500 light ye…

1. True/False: Like innate sensors of infections(TLRs, NLRs, RL Rs), antibodies

1. True/False: Like innate sensors of infections(TLRs, NLRs, RL Rs), antibodies frequentlyrecognize nucleic acids of pathogenic organisms. 2. Antibodies that bind with high affini…

1. True/False: Once B cells begin secreting antibodies, they cease dividing and

1. True/False: Once B cells begin secreting antibodies, they cease dividing and have a life-span of only a few days. 2. In germinal centers, proliferating B cells undergo a proces…

1. True/False: The invariant chain protein, Ii, has only one function in MHC cla

1. True/False: The invariant chain protein, Ii, has only one function in MHC class II antigen presentation. This function entails Ii protein occupying the peptide-binding site of …

1. True/False: The mechanism by which CTLA-4 inhibits T cell activation is by re

1. True/False: The mechanism by which CTLA-4 inhibits T cell activation is by recruiting inhibitory phosphatases. 2. Genetically inherited immunodeficiency diseases can result fro…

1. True/False: Unlike innate immune responses, adaptive immune responses are ini

1. True/False: Unlike innate immune responses, adaptive immune responses are initiated in secondary lymphoid organs. However, the innate immune response to an infection in a tissu…

1. Tubulin addition and removal from the minus end is much faster than from the

1. Tubulin addition and removal from the minus end is much faster than from the plus end of microtubules. True or False 2. Which of the following are true in regard to tubulin? (C…

1. Twelve generic types of interactions are possible among the four spheres of t

1. Twelve generic types of interactions are possible among the four spheres of the Earth. Match the following with the corresponding examples A.B. C.D. Changes in the solid A. As …

1. Twice occurring high and low tide at equivalent water levels. a. Spring tide

1. Twice occurring high and low tide at equivalent water levels. a. Spring tide b. Neap tide c. Diurnal tide d. Semidiurnal tide e. Semidiurnal mixed tide 2. A tide that happens d…

1. Two alleles of a gene code for exactly the same amino acid sequence and yet t

1. Two alleles of a gene code for exactly the same amino acid sequence and yet the produce different proteins: explain how this can occur. 2. An extremely clever approach to using…

1. Two genes are on the same chromosome. Will these two genes follow independent

1. Two genes are on the same chromosome. Will these two genes follow independent assortment?_______ Why or why not? 2. In cats, curled ears (E) is dominant over normal ears (e). O…

1. Two great scholars and activist of the Harlem Renaissance, Alain Locke and Dr

1. Two great scholars and activist of the Harlem Renaissance, Alain Locke and Dr. W.EB DuBois coined the following cultural movement idea: a. "Black is Beautiful" b. The New Negro…

1. Two independent E. colimutants (1 and 2) are induced using mutagen X. After b

1. Two independent E. colimutants (1 and 2) are induced using mutagen X. After being mutated with mutagen X, each mutant is taken and exposed to the following mutagens: Bromouraci…

1. Two linked genes, (A) and (B), are separated by 18 m.u. A man with genotype A

1. Two linked genes, (A) and (B), are separated by 18 m.u. A man with genotype Aa Bb marries a woman who is aa bb. The man's father was AA BB. What is the probability that their f…

1. Two monatomic ideal gas experiments were performed in a laboratory. The data

1.    Two monatomic ideal gas experiments were performed in a laboratory. The data calculated from these experiments are in the table below. In both experiments the initial condit…

1. Two objects of the same mass fall from different heights. If air friction is

1. Two objects of the same mass fall from different heights. If air friction is negligible then they will land on the ground (A) at the same time but different speeds and accelera…

1. Two part question from the Appleby paper: The authors state that \"we found t

1. Two part question from the Appleby paper: The authors state that "we found that transient synaptic activation of NMDARs in hippocampal neurons leads to an increase in native Gl…

1. Two pure breeding plants with the genotypes ddPP and DDpp are crossed togethe

1. Two pure breeding plants with the genotypes ddPP and DDpp are crossed together to generate FI progeny with the genotype DdPp. F1 individuals were testcrossed to a homozygous pa…

1. Two pure breeding plants with the genotypes ddPP and DDpp are crossed togethe

1. Two pure breeding plants with the genotypes ddPP and DDpp are crossed together to generate Fl progeny with the genotype DdPp. F1 individuals were testcrossed to a homozygous pa…

1. Two red-eyed Drosophila are mated, and their progeny show a 3:1 ratio of red

1. Two red-eyed Drosophila are mated, and their progeny show a 3:1 ratio of red to white, but the whites are all males. Letting "A" be red and "a" white, the parents can best be r…

1. Two species of squirrels could potentially interbreed, but in one species the

1. Two species of squirrels could potentially interbreed, but in one species the females become fertile only for 2 weeks in July while the males of the other species only actively…

1. Two species,A and B, are in competition and are both preys of a third species

1. Two species,A and B, are in competition and are both preys of a third species,C. Suppose there is a migration (from somewhere else) of species C into the region at the ratem in…

1. Two strands of DNA are held together as shown. The partial charge on each 2 a

1. Two strands of DNA are held together as shown. The partial charge on each 2 and N atom is approximately 0.2e and 0.4e on each O atom. 0.2e represe of the charge of an electron,…

1. Type of protist that carries on photosynthesis 2. Bacterial cell wall compone

1. Type of protist that carries on photosynthesis 2. Bacterial cell wall component the defines bacteria as gram negative or gram positive 3. Unicellular organisms than moves and e…

1. Types of genes that cause cancer when mutated include all of the following EX

1. Types of genes that cause cancer when mutated include all of the following EXCEPT: A. cell-cycle control genes. B. pro-apoptotic genes. C. growth-factor receptor genes. D. DNA …

1. Unattached ear lobes (EE or Ee) are dominant over attached earlobes (ee). A c

1. Unattached ear lobes (EE or Ee) are dominant over attached earlobes (ee). A couple both have unattached earlobes. Both notice that one of their parents on each side has attache…

1. Unattached earlobes are a dominant trait. Finn and Maggie both have unattache

1. Unattached earlobes are a dominant trait. Finn and Maggie both have unattached earlobes but their daughter, Celia, does not. If Finn and Maggie have a second child, what is the…

1. Under F3: Proper Motion of the Stars, advance to 3: Effects of Proper Motion-

1. Under F3: Proper Motion of the Stars, advance to 3: Effects of Proper Motion-the Dippers. Run time forward until it automatically stops and watch how the patterns of the dipper…

1. Under what condition that a bacterial cell with pGLO plasmid will glow under

1. Under what condition that a bacterial cell with pGLO plasmid will glow under UV light? a. presence of Ca+ ions b. presence of ampicillin c. presence of arabinose d. after the h…

1. Under what conditions might Exons evolve more quickly than introns? 2. Give t

1. Under what conditions might Exons evolve more quickly than introns? 2. Give three eukaryotic mechanisms that produce more than one polypeptide from the same DNA sequence. 3. In…

1. Under which conditions would the lac operon produce the greatest amount of ?-

1.    Under which conditions would the lac operon produce the greatest amount of ?-galactosidase? The least? Explain your reasoning.                                     Lactose pr…

1. Under which model of sexual selection is sexual conflict responsible for the

1. Under which model of sexual selection is sexual conflict responsible for the evolution of male ornaments or display traits? Select one: a. Run-away sexual selection b. Chase-aw…

1. Under which of the following conditions would genes on the same chromosome as

1. Under which of the following conditions would genes on the same chromosome assort independently? • double crossovers in the region of interest • genes widely separated on the s…

1. Understanding: Classify the fatty acid pictured above as saturated or unsatur

1. Understanding: Classify the fatty acid pictured above as saturated or unsaturated. 2. Understanding. Explain why the photo represents a saturated or unsaturated fatty acid. App…

1. Universal features of DNA polymerases include: A. 5\'-3\' exonuclease functio

1. Universal features of DNA polymerases include: A. 5'-3' exonuclease function. B. Formation of a 'closed' conformation of the polymerase when the template-nucleotide base pair i…