DAT BIO Practice Exams PDF

8/29/24, 12:09 AM DAT BIO practice exams all Flashcards | Quizlet DAT BIO practice exams all Students also studied Force Protection Module 4: Counteri... chapter 13 Bcot247...

8/29/24, 12:09 AM DAT BIO practice exams all Flashcards | Quizlet DAT BIO practice exams all Students also studied Force Protection Module 4: Counteri... chapter 13 Bcot247 Quizlet set 5 You are to c 6 terms 42 terms Teacher 10 terms 15 terms royallovesfish Preview jose_abarca9 Preview gerardo_saenzreyes Preview lolbit47 Terms in this set (680) Short hair (H) is dominant to long hair (h) and white claws (C) are dominant to black claws (c). A male dog is mated with a HhCc female dog. If all of the offspring have short D. HHcc hair and 50% have black claws, what is the likely genotype of the father? A. HHCC crossing Hh x HH gets all black hair B. HHCc crossing Cc x cc gets 50% black claws C. HhCc D. HHcc E. hhcc In an enzyme kinetics plot, a noncompetitive inhibitor causes KM to ____ and Vmax to stay the same / decrease ____. By what mechanism do crassulacean acid metabolism plants reduce photorespiration in hot environments? A. Spatial isolation B. Temporal isolation B. Temporal isolation C. C2 photosynthesis D. Cyclic photophosphorylation Antidiuretic hormone (ADH) (vapopressin) / has the effect of preventing urine production by increasing water reabsorption in the increasing kidneys. This has the effect of ____ blood pressure. euchromatin Loosely packed DNA is accessible for transcription A small pool of founders in a new population typically lacks genetic diversity, and this founder effect will limit genetic variation Which of the following plant types spend most of their life cycle in the sporophyte stage? A. Ferns A. Ferns B. Mosses C. Liverworts D. Hornworts _____ is an inherited behavioral sequence that continues to completion in response to a A fixed action pattern certain stimulus. - considered the simplest form of an instinct. Which of the following results in a violation of the law of independent assortment? A. Aneuploidy B. Genetic linkage B. Genetic linkage C. Epistasis D. Polygenic inheritance E. Chiasmata https://quizlet.com/931594630/dat-bio-practice-exams-all-flash-cards?funnelUUID=08881b27-95c7-4357-a16b-837632a7d6f5 1/68 8/29/24, 12:09 AM DAT BIO practice exams all Flashcards | Quizlet If missing, which of the following would prevent DNA transcription from occurring? A. 80S ribosome B. RNA polymerase B. RNA polymerase C. tRNA D. DNA polymerase E. rRNA Lymphatic system Lining of digestive, respiratory, and excretory system Stomach Liver Pancreas Lungs endoderm Bladder PLTT Pancreas Liver Thyroid + Parathyroid Thymus An alteration in a region of a honeybee embryo's genome results in an additional pair of legs behind its antennae. What is the identity of this altered region of the genome? A. TATA box B. Homeobox B. Homeobox C. Hairpin loop D. Enhancer Assuming independent assortment, how many different gametes can be produced from D. 4 the genotype AABbCc? A. 3 (# Possible A gametes) (# Possible B B. 4 gametes) (# Possible C gametes) C. 6 Substituting in the numbers gives us: 1 2 2 = 4 D. 8 possibilities. E. 16 B. 2n = 21 If a zebra is 2n = 18 and a horse is 2n = 24, what is the genetic makeup of the hybrid offspring? The hybrid will receive 9 chromosomes from A. 2n = 18 the zebra parent, and 12 chromosomes from B. 2n = 21 the horse parent. This will combine to form 21 C. 2n = 22 chromosomes in the hybrid offspring. D. 2n = 24 A test-cross is when you cross a phenotypically ____ organism (which you do not know dominant / homozygously recessive the genotype of), with a ____ ____ organism (which you do know the genotype of). describes the mode of reproduction in which animals (e.g. frogs) produce eggs that Oviparity develop and hatch after they have been expelled from the mother. Where is antidiuretic hormone stored in the body? A. Thyroid B. Pancreas D. Posterior pituitary C. Pineal gland D. Posterior pituitary E. Anterior pituitary https://quizlet.com/931594630/dat-bio-practice-exams-all-flash-cards?funnelUUID=08881b27-95c7-4357-a16b-837632a7d6f5 2/68 8/29/24, 12:09 AM DAT BIO practice exams all Flashcards | Quizlet A series of DNA samples are labeled as follows: B. I and III I. 10% cytosine II. 20% guanine If there is 10% cytosine --> assume 10% III. 40% adenine guanine IV. 60% thymine If there is 40% adenine --> assume 40% thymine Which set of samples likely originated from the same organism? A. I and II 10% C + 10% G + 40% A + 40% T = 100% of B. I and III DNA C. II and IV D. III and IV E. II, III and IV A population started with 20 brown mice and 20 gray mice. Due to hunting pressures, the population changes to 19 brown mice and 1 gray mouse. What is this an example of? A. Stabilizing selection B. Directional selection B. Directional selection C. Disruptive selection D. Sexual selection E. Balancing selection Snake venom binds to and irreversibly inactivates acetylcholine in the synapse. What is the ultimate effect of this? C. The postsynaptic muscle fiber will not A. The muscle fiber will rapidly and uncontrollably contract contract B. The presynaptic neuron will fire C. The postsynaptic muscle fiber will not contract D. No effect function during stress promotes dormant seeds abscisic acid closes stomata inhibits growth Which enzyme acts in the first step of glycolysis? A. Hexokinase B. Lactase A. Hexokinase C. Amylase D. Trypsin E. Phosphofructokinase All of the following are amniotes EXCEPT one. Which is the EXCEPTION? A. Amphibia B. Reptiles A. Amphibia C. Birds D. Marsupial mammals E. Placental mammals All of the following are characteristics of Chordata EXCEPT one. Which is the EXCEPTION? A. Post-anal tail C. Diploblastic B. Notochord C. Diploblastic D. Pharyngeal gill slits E. Dorsal hollow nerve cord Hematopoiesis occurs in the ____ bone marrow. red red / yellow Epiphysis contains ___ bone marrow, while diaphysis contains ___ bone marrow. https://quizlet.com/931594630/dat-bio-practice-exams-all-flash-cards?funnelUUID=08881b27-95c7-4357-a16b-837632a7d6f5 3/68 8/29/24, 12:09 AM DAT BIO practice exams all Flashcards | Quizlet Iodine ____ is required for the production of thyroid hormones (T3 and T4) Which of the following lab techniques is correctly matched? A. Northern blotting and DNA probes C. Western blotting and SDS PAGE B. Southern blotting and antibodies C. Western blotting and SDS PAGE D. ELISA and Taq polymerase The ___ the map units, the further apart the genes and the ___ likely they are inherited greater / less together. Which of the following describes a unicellular organism with pseudopodia? A.Mammal B. Fungus C. Protist (amoeba) C. Protist D. Prokaryote E. Plant In the lac operon, when allolactose is present it binds to the A. activator protein and inhibits it. C. repressor protein and inhibits it. B. activator protein and activates it. C. repressor protein and inhibits it. D. repressor protein and activates it. At the start of depolarization, what channel would be open and where would the substance flow? A. Sodium channel, out of the cell B. Sodium channel, into the cell B. Sodium channel, into the cell C. Potassium channel, out of the cell D. Potassium channel, into the cell Which one of the following forces holds the primary structure of DNA together? A. Ionic bonds D. Phosphodiester bonds B. Hydrogen bonds C. Disulfide bonds D. Phosphodiester bonds Radioactive ____ is used to track proteins. sulfur phosphate Radioactive ___ is used to track DNA and RNA. What is a likely consequence of overactive angiotensin converting enzyme? A. Decrease in potassium secretion B. Inhibition of aldosterone release C. Increase in reabsorption C. Increase in reabsorption D. Systemic vasodilation E. Increased conversion of renin to angiotensin I diaphragm The ____ separates the thoracic cavity from the abdominal cavity. What occurs in the luteal phase of the ovarian cycle? A. Follicle develops into the corpus luteum B. Release of secondary oocyte A. Follicle develops into the corpus luteum C. Follicle stimulating hormone peaks D. Luteinizing hormone peaks E. Menstruation ends An ____ amount of R-factors would indicate that the bacterial sample has become increased antibiotic-resistant. https://quizlet.com/931594630/dat-bio-practice-exams-all-flash-cards?funnelUUID=08881b27-95c7-4357-a16b-837632a7d6f5 4/68 8/29/24, 12:09 AM DAT BIO practice exams all Flashcards | Quizlet Molds are to fungi, as rotifers are to A. animalia. B. archaea. A. animalia. C. eubacteria. D. plantae. E. protista. Mitochondria and chloroplasts are similar in all of the following ways EXCEPT one. Which is the EXCEPTION? A. They possess their own DNA E. They produce ATP by oxidative B. They have similar ribosomes phosphorylation C. They reproduce independently of their host cell D. They have a double membrane E. They produce ATP by oxidative phosphorylation If blood calcium levels suddenly increase, which of the following cell types would have the most direct regulatory response? A. Juxtaglomerular cells D. Parafollicular cells B. Alpha cells C. Beta cells D. Parafollicular cells E. Hepatocytes Which of the following will increase intracellular calcium? A. cGMP C. IP3 B. NO C. IP3 D. ATPase 2/3 The left lung has ___ lobes; the right lung has ___ lobes. What structures bond together to form the backbone of DNA? A. Sugars, phosphates, phosphodiester bonds A. Sugars, phosphates, phosphodiester B. Sugars, phosphates, hydrogen bonds bonds C. Sugars, nitrogenous bases, phosphodiester bonds D. Sugars, nitrogenous bases, hydrogen bonds E. Nitrogenous bases, phosphates, phosphodiester bonds Which of the following best represents the current supported model of evolution? A. Consistent and gradual accumulation of small intermediary changes B. Long periods of stasis followed by short B. Long periods of stasis followed by short periods of rapid speciation periods of rapid speciation C. Species mate randomly to increase genetic variation D. Species evolve based on their use and disuse of characteristics polygenic inheritance When ____ occurs, many genes contribute to one phenotype. pleiotropy When ___ occurs, one gene affects many different phenotypes. What is a difference between annelids and arthropods? A. Segmented body parts B. Complete digestive system C. Open circulatory system C. Open circulatory system D. Bilateral body symmetry E. Anterior brains Which diseases are caused by bacteria? A. Gonorrhea, tuberculosis, leprosy A. Gonorrhea, tuberculosis, leprosy B. Huntington's, HIV, coronavirus C. Herpes, trichinosis, cystic fibrosis D. Athlete's foot, slime mold, measles https://quizlet.com/931594630/dat-bio-practice-exams-all-flash-cards?funnelUUID=08881b27-95c7-4357-a16b-837632a7d6f5 5/68 8/29/24, 12:09 AM DAT BIO practice exams all Flashcards | Quizlet Viruses are not living cells and therefore they rely on the cells they infect in order to nuclei / organelles replicate themselves. Erythrocytes are invulnerable to viral infection because they lack ____ and ____. macrophages (monocytes), neutrophils, and Phagocytes are cells of the immune system that "eat" (phago-) and destroy pathogens. dendritic cells Examples include what 3 cells? Which of the following is common to both a glycosidic and phosphodiester bond? A.Both can be classified as an alpha or beta bond D. Both produce an H2O molecule during B. Both are formed by a hydrolysis reaction bond formation C. Both involve an amide reacting with a carboxyl group D. Both produce an H2O molecule during bond formation E. Both are stabilized by resonance The ____ is responsible for synthesizing lipids and steroid hormones and helps with smooth ER detoxification. Which of the following directly produces steroids? A. Uterus B. Adrenal cortex B. Adrenal cortex C. Hypothalamus D. Posterior pituitary E. Pancreas Which of the following is the function of surfactant? A. Protect the stomach lining B. Cool the skin D. Prevent alveolar collapse C. Lubricate the eye D. Prevent alveolar collapse E. Produce saliva A ___ is a large multinucleate cell that occurs when a fungal or Protista cell divides its nucleus but does coenocyte not undergo cellular division (cytokinesis). Where is acetyl-CoA produced in eukaryotes? A. Mitochondrial matrix B. Cytoplasm A. Mitochondrial matrix C. Mitochondrial intermembrane space D. Across the mitochondrial outer membrane E. Across the cellular membrane Which of the following can be used to induce deletions of specific sequences in the human genome? A. Southern blot B. CRISPR B. CRISPR C. Polymerase chain reaction D. Transposase E. Homologous recombination If secretin production was impaired, which of the following would be expected to decrease? A. Parietal cell stimulation C. Chyme neutralization B. Mucus production C. Chyme neutralization D. Gastric emptying E. Pepsinogen secretion https://quizlet.com/931594630/dat-bio-practice-exams-all-flash-cards?funnelUUID=08881b27-95c7-4357-a16b-837632a7d6f5 6/68 8/29/24, 12:09 AM DAT BIO practice exams all Flashcards | Quizlet A researcher is analyzing two species of paramecium in the lab. The following graphs were obtained from monitoring their population growth over time in three separate experiments. What phenomenon was the researcher observing when the species shared the same niche? D. Competitive exclusion A. Apparent competition B. Character displacement C. Resource partitioning D. Competitive exclusion E. Parasitism In animals, which of the following is most structurally similar to chlorophyll? A. Oleic acid B. Heme group B. Heme group C. Ribose D. Albumin E. Rubisco Which of the following is a branched plant starch? A. Amylose D. Amylopectin B. Glycogen C. Cellulose D. Amylopectin Which of the following immune cell types would be affected by an improperly developed thymus? A. B cells C. T cells B. Natural killer cells C. T cells D. Antibodies Which organelle would pellet first during centrifugation? A. Ribosome B. Lysosome E. Nucleus C. Mitochondria D. Golgi complex E. Nucleus Nucleus/nuclear envelope The endomembrane system includes the following 7 organelles Rough endoplasmic reticulum Smooth endoplasmic reticulum Golgi apparatus Lysosomes Vacuoles Cell membrane After the blastocyst has successfully implanted into the endometrium, what hormone prevents the corpus luteum from degenerating? A. Luteinizing hormone C. Human chorionic gonadotropin B. Follicle-stimulating hormone C. Human chorionic gonadotropin D. Estrogen E. Progesterone Which of the following point mutations would be most detrimental to protein function? A. Conservative missense B. Early nonsense B. Early nonsense C. Third base substitution D. Duplication E. Late insertion https://quizlet.com/931594630/dat-bio-practice-exams-all-flash-cards?funnelUUID=08881b27-95c7-4357-a16b-837632a7d6f5 7/68 8/29/24, 12:09 AM DAT BIO practice exams all Flashcards | Quizlet Seedless ___ vascular plants like ferns have independent gametophyte and sporophyte stages. Which of the following population limiting factors are NOT density-dependent? A. Warfare B. Tornado B. Tornado C. Viral infection D. Drinkable water Immunofluorescence microscopy is a technique used to visualize the distribution of target proteins. This tumor suppressor gene causes cell cycle arrest in G1, providing time for DNA p53 repair. If repair is successful, cells re-enter the cycle. If unsuccessful, apoptosis A surge in luteinizing hormone causes which of the following? A. Completion of Meiosis II B. Ovulation B. Ovulation C. Maturation of follicles D. Thickening of the endometrium Which of the following correctly describes the passage of air to the lungs? A. Pharynx → larynx → trachea → bronchi → bronchioles → alveoli A. Pharynx→ larynx → trachea → bronchi → B. Sinus → esophagus → trachea → bronchioles → bronchi → alveoli bronchioles → alveoli C. Larynx → pharynx → trachea → pleura → bronchioles → alveoli D. Larynx → esophagus → trachea → bronchi → bronchioles → alveoli E. Sinus → pleura → pharynx → bronchi → trachea → alveoli All of the following processes involve phosphorylation EXCEPT one. Which is the EXCEPTION? A. Citric acid cycle D. Formation of acetyl-CoA B. Phosphofructokinase activity C. Conversion of nucleosides into nucleotides D. Formation of acetyl-CoA E. Conversion of ADP to ATP ATP and NADPH During photosynthesis, the light dependent reactions produce ____ and ____ and the light glucose independent reactions fix carbon into ___. - Filter the blood to create urine - Regulate blood pressure kidney function - Stimulate the production of red blood cells via secretion of erythropoietin - Maintenance of blood pH - Regulate osmolality All of the following are methods of post-translational modification of polypeptides EXCEPT one. Which is the EXCEPTION? A. Glycosylation D. Removal of introns B. Protease activity C. Acetylation D. Removal of introns E. Methylation Neutrophils The four types of granulocytes are: Eosinophils 3 types of lymphocytes Basophils Mast cells natural killer cells, B cells, and T cells. Bicarbonate ___ is the main extracellular buffer system in humans that is used to regulate blood pH. Phosphate ___ is mainly used to regulate intracellular pH. https://quizlet.com/931594630/dat-bio-practice-exams-all-flash-cards?funnelUUID=08881b27-95c7-4357-a16b-837632a7d6f5 8/68