Archives: Quiz

Which of the following is associated with obesity and occurs because cells of the body fail to respond adequately to insulin? A) type 1 diabetes B) type 2 diabetes C) hyperglycemia D) hypoglycemia Photophosphorylation during photosynthesis differs from oxidative phosphorylation […]

Which of the following statements would Darwin have disagreed with? A) Species change over time. B) Living species have arisen from earlier life-forms. C) Descent with modification occurs through inheritance of acquired characteristics. D) Descent with modification occurs by natural […]

If we were to separate these eight cells and attempt to culture them individually, then what is most likely to happen? A) All eight cells will die immediately. B) Each cell may continue development, but only into a nonviable embryo […]

Which functional group shown above is characteristic of alcohols? A) A B) B C) C D) D The Panama Canal was completed in 1914, and its depth is about fifty feet. After 1914, snapping shrimp species from which habitats should […]

Which of the three types of viruses shown above would you expect to include glycoproteins? A) I only B) II only C) III only D) I and II only For your internship at the local zoo, you have been assigned […]

The following questions refer to the figure below, which shows an outcrop of sedimentary rock whose strata are labeled A-D. If x indicates the location of fossils of two closely related species, then fossils of their most-recent common ancestor are […]

Heartwood and sapwood consist of _____. A) periderm B) secondary xylem C) secondary phloem D) cork Your friend is wary of environmentalists’ claims that global warming could lead to major biological change on Earth. Which of the following statements can […]

Which one of the following correctly ranks these organisms in order from lowest to highest percent in production efficiency? A) mammals, fish, insects B) insects, fish, mammals C) fish, insects, mammals D) mammals, insects, fish A major group of G […]

The following questions are based on the observation that several dozen different proteins comprise the prokaryotic flagellum and its attachment to the prokaryotic cell, producing a highly complex structure. If the complex protein assemblage of the prokaryotic flagellum arose by […]

Refer to the following graph of an action potential to answer the question(s) below. The neuronal membrane is at its resting potential at label _____. A) A B) B C) D D) E The necropsy (postmortem analysis) of a freshwater […]

Put the following events of elongation in prokaryotic translation in chronological order. 1. Binding of mRNA with small ribosomal subunit 2. Recognition of initiation codon 3. Complementary base pairing between initiator codon and anticodon of initiator tRNA 4. Base pairing […]

In the figure above, which of the following survivorship curves most applies to humans living in developed countries? A) curve A B) curve B C) curve C D) curve A or curve B Transpiration in plants requires _____. I) adhesion […]

Sequencing an entire genome, such as that of C. elegans, a nematode, is most important because _____. A) it allows researchers to use the sequence to build a “better” nematode, which is resistant to disease B) it allows research on […]

Which factor most likely caused animals and plants in India to differ greatly from species in nearby southeast Asia? A) The climates of the two regions are similar. B) India is in the process of separating from the rest of […]

Which of the following best describes the physical relationship of the partners involved in lichens? A) Fungal cells are enclosed within algal cells. B) Lichen cells are enclosed within fungal cells. C) Photosynthetic cells are surrounded by fungal hyphae. D) […]

In a hypothetical environment, fishes called pike-cichlids are visual predators of large, adult algae-eating fish (in other words, they locate their prey by sight). The population of algae-eaters experiences predatory pressure from pike-cichlids. Which of the following is least likely […]

Why is it so important to be able to amplify DNA fragments when studying genes? A) Before amplification, DNA fragments are likely to bind to RNA and no longer be able to be analyzed. B) A gene may represent only […]

Which statement represents the best explanation for the observation that the nuclear DNA of wolves and domestic dogs has a very high degree of sequence homology? Dogs and wolves _____. A) have very similar morphologies B) belong to the same […]

Retaining the zygote on the living gametophyte of land plants _____. A) protects the zygote from herbivores B) evolved concurrently with pollen C) helps in dispersal of the zygote D) allows it to be nourished by the parent plant Why […]

The questions below refer to the following table, which compares the % sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species. Each part is numbered to indicate […]

Which of the following is a characteristic of all angiosperms? A) double internal fertilization B) free-living gametophytes C) carpels that contain microsporangia D) ovules that are not contained within ovaries Asexual reproduction results in offspring that are genetically identical to […]

Which of the following characteristics are expected in the first animals to have colonized land? 1. were probably herbivores (ate photosynthesizers) 2. had four appendages 3. had the ability to resist dehydration 4. had lobe-finned fishes as ancestors 5. were […]

Acidity in human sweat is an example of _____. A) cell-mediated immune responses B) acquired immunity C) adaptive immunity D) innate immunity Which of the following is true of enzymes? A) Enzyme function is increased if the 3- D structure […]

Mycorrhizae are to the roots of vascular plants as endophytes are to vascular plants’ _____. A) leaf mesophyll B) stem apical meristems C) root apical meristems D) xylem Charles Darwin proposed a mechanism for descent with modification that stated that […]

Which of the following is generally true about the current research regarding forest fragmentation? A) Fragmented forests promote biodiversity because they result in the combination of forest-edge species and forest-interior species. B) In fragmented forests, the number of forested-adapted species […]

Broad-spectrum antibiotics inhibit the growth of most intestinal bacteria. Consequently, assuming that nothing is done to counter the reduction of intestinal bacteria, a hospital patient who is receiving broad-spectrum antibiotics is most likely to become _____. A) unable to fix […]

Planarians lack dedicated respiratory and circulatory systems because _____. A) none of their cells are far removed from the gastrovascular cavity or from the external environment B) they lack mesoderm as embryos and, therefore, lack the adult tissues derived from […]

Compared to most animals, the growth of most plant structure is best described as _____. A) perennial B) weedy C) indeterminate D) primary Yearly vaccination of humans for influenza viruses is necessary because _____. A) of an increase in immunodeficiency […]

In general, a signal transmitted via phosphorylation of a series of proteins _____. A) results in a conformational change to each protein B) requires binding of a hormone to an intracellular receptor C) activates a transcription event D) generates ATP […]

Which of the following statements is a correct explanation for the observation that all offspring exhibit a phenotype for a particular trait that appears to be a blend of the two parental varieties? A) Neither of the parental genes is […]

One mole (mol) of glucose (molecular mass = 180 daltons) is _____. A) 180 x 1023 molecules of glucose B) 1 kilogram of glucose dissolved in 1 liter of solution C) 180 kilograms of glucose D) 180 grams of glucose […]

Which of the following shows a brain structure correctly paired with one of its primary functions? A) frontal lobe decision making B) occipital lobe control of skeletal muscles C) temporal lobe visual processing D) occipital lobe speech production C.elegans is […]

A localized group of organisms that belong to the same species is called a _____. A) community B) population C) ecosystem D) family A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the […]

What does it mean when we say the genetic code is redundant? A) A single codon can specify the addition of more than one amino acid. B) The genetic code is different for different domains of organisms. C) The genetic […]

In an analysis of the nucleotide composition of DNA, which of the following will be found? A) A = C B) A = G and C = T C) A + C = G + T D) G + C […]

The pattern of inheritance (monohybrid, dihybrid, sex-linked, and genes linked on the same chromosomes) can be predicted from data if one is given the parent or offspring genotypes or phenotypes. Two organisms, with genotypes BbDD and BBDd, are mated. Assuming […]

The suprachiasmatic nuclei are found in the _____. A) hypothalamus B) epithalamus C) amygdala D) Broca’s area The symplastic route can transport _____. A) sugars, mRNA, and mitochondria B) mRNA, mitochondria, and proteins C) mitochondria, mRNA, and viruses D) viruses, […]

Which of the following poses the best evidence that cell-signaling pathways evolved early in the history of life? A) Cell-signaling pathways are seen in “primitive” cells such as bacteria and yeast. B) Bacteria and yeast cells signal each other in […]

A female fly, full of fertilized eggs, is swept by high winds to an island far out to sea. She is the first fly to arrive on this island and the only fly to arrive in this way. Thousands of […]

If you think of the earthworm body plan as a drinking straw within a pipe, where would you expect to find most of the tissues that developed from endoderm? A) lining the straw B) lining the space between the pipe […]

Suppose a plant had a photosynthetic pigment that absorbed far-red wavelengths of light. In which of the following environments could that plant thrive? A) on the surface of a lake B) on the forest floor, beneath a canopy of taller […]

As electrons are passed through the system of electron carriers associated with photosystem II, they lose energy. What happens to this energy? A) It excites electrons of the reaction center of photosystem I. B) It is lost as heat. C) […]

How would you classify the genetic basis for most behavioral traits in the animal kingdom? A) One gene typically codes for one behavior. B) One gene typically codes for many behaviors. C) Many genes typically code for one behavior. D) […]

During which phase of mitosis do the chromatids become chromosomes? A) telophase B) anaphase C) prophase D) metaphase Chemical equilibrium is relatively rare in living cells. An example of a reaction at chemical equilibrium in a cell would be _____. […]

Which of the following calculations require that you utilize the addition rule? A) Calculate the probability of black offspring from the cross AaBb x AaBb, where B is the symbol for black. B) Calculate the probability of children with both […]

In the human knee-jerk reflex of a seated individual, as the calf is raised from a vertical position to a horizontal position, the muscles of the quadriceps (on the front of the thighs) and the muscles of the hamstring (on […]

Osteoporosis is a condition in which the density of bones is decreased so much that the individual is at a higher risk of fractures. The more calcium in the bones, the better the bone density. Which of the following would […]

Which of the following occurs in vascular land plants but not charophytes (stoneworts)? A) sporopollenin B) lignin C) chlorophyll a D) cellulose Where are proteins produced other than on ribosomes free in the cytosol or ribosomes attached to the ER? […]

Which variable is likely to undergo the largest change in value resulting from a mutation that introduces a new allele into a population at a locus for which all individuals formerly had been fully homozygous? A) average heterozygosity B) nucleotide […]

Which of the following cells transport sugars over long distances? A) parenchyma cells B) sclerenchyma cells C) tracheids and vessel elements D) sieve-tube elements Scientists interested in how populations interact within communities are attempting to determine the species diversity of […]