Biology and Genetics

Which one in the pair is greater? The amount of time between firing of an electr

Which one in the pair is greater? The amount of time between firing of an electrical signal at the SA node and atrial contraction The amount of time between firing of an electrica…

Which one is FALSE regarding osmotic concentration of a solution a. The osmotic

Which one is FALSE regarding osmotic concentration of a solution a. The osmotic pressure in mammalian cells can be determined b. RPMI is in the osmotic range for some human cells …

Which one is FALSE? a Electron transport in human mitochondria would be classifi

Which one is FALSE? a Electron transport in human mitochondria would be classified as interspecies electron transfer b Electron circuits have be engineered in living cells. c. Mit…

Which one is a scientific hypothesis? 1) A Presbyterian minister writes an artic

Which one is a scientific hypothesis? 1) A Presbyterian minister writes an article for Reader's Digest in which he proposes the idea that prayer makes plants grow better. He says …

Which one of potassium or sodium affect resting membrane potential more and why?

Which one of potassium or sodium affect resting membrane potential more and why? Then which is greater? The electrochemical gradient driving sodium into the cell or the electroche…

Which one of the following ancient religious concepts is considered by many scho

Which one of the following ancient religious concepts is considered by many scholars to be the source of the Christian concept of hell? A. The Egyptian underworld B. The ancient G…

Which one of the following animals has no digestive tract of any sort? earthworm

Which one of the following animals has no digestive tract of any sort? earthworm sea anemone tapeworm fluke. Which of the following is NOT a unique characteristic of chordates at …

Which one of the following below correctly completes the statement, Reciprocal a

Which one of the following below correctly completes the statement, Reciprocal altruism directed toward non-kin may evolve when. Individuals can recognize and remember other indiv…

Which one of the following biological polymers is mismatched with its monomer? A

Which one of the following biological polymers is mismatched with its monomer? A) DNA — nucleotide B) protein — fatty acid C) starch — a-(D)-glucose D) fatty acid — Acetyl-S-coenz…

Which one of the following choices best indicates the trends that take place whe

Which one of the following choices best indicates the trends that take place when moving from the surface toward the center of Earth?             a. It becomes hotter with greater…

Which one of the following companies has not been fined or cited for environment

Which one of the following companies has not been fined or cited for environmental pollution? Wal-Mart Proctor & Gamble Texaco Ocean Spray Allied Chemical Corporation, develop…

Which one of the following conditions would prevent a population from achieving

Which one of the following conditions would prevent a population from achieving Hardy-Weinberg equilibrium? a) No migration occurs between different populations b) No natural sele…

Which one of the following descriptions of the part of a mammalian kidney is cor

Which one of the following descriptions of the part of a mammalian kidney is correct? The ureter is the tube that drains the urinary bladder to the outside of the body. Bowman's c…

Which one of the following descriptions of the term is incorrect? Bacillus = ben

Which one of the following descriptions of the term is incorrect? Bacillus = bent or folded Coccus = spherical Spirilla = helical(short form) Vibrios = comma shaped Staphylococci …

Which one of the following does current research show helps moral development ?

Which one of the following does current research show helps moral development? Question 24 options: Use consistent enforcement of rules so children will stop questioning why they …

Which one of the following equations does NOT represent a reaction or group of r

Which one of the following equations does NOT represent a reaction or group of reactions that function in the complete oxidation of pyruvate by the mitochondria? (Do not be concer…

Which one of the following examples could serve as an example to illustrate what

Which one of the following examples could serve as an example to illustrate what is meant by "norm of reaction"? Answer In some reptiles, sex-type is determined by the egg-incubat…

Which one of the following expressions from the logistic equation (dN/dt = rN (K

Which one of the following expressions from the logistic equation (dN/dt = rN (K - N)/K) represents the proportion of unused resources remaining for use by the population? 1) the …

Which one of the following flow of information goes against the current concept

Which one of the following flow of information goes against the current concept of modified "central " in molecular biology? DNA to RNA RNA to DNA RNA to Protein Protein to RNA Wh…

Which one of the following groups is likely to have higher assimilation efficien

Which one of the following groups is likely to have higher assimilation efficiencies? Question 1 options: A) B) C) D) Herbivores in desert ecosystems. Question 2 Which of the foll…

Which one of the following hormones lowers blood glucose? glucocorticoids epinep

Which one of the following hormones lowers blood glucose? glucocorticoids epinephrine insulin glucagon Which hormone is released from the anterior pituitary? growth hormone oxytoc…

Which one of the following is NOT a way that humans increased the carrying capac

Which one of the following is NOT a way that humans increased the carrying capacity of agricultural land during the 'green revolution.' Question 1 options: Increased use of irriga…

Which one of the following is a common way to measure decomposition rate? a) Amo

Which one of the following is a common way to measure decomposition rate? a) Amount of detritus present in an environment at any one time, measured by weighing detritus in the fie…

Which one of the following is not evidence* in support of the endosymbiont theor

Which one of the following is not evidence* in support of the endosymbiont theory? * note that a statement may be true but, it is not evidentiary (i.e not a a piece of evidence) i…

Which one of the following is not required for photosynthesis CO_2 H_2O Light Ch

Which one of the following is not required for photosynthesis CO_2 H_2O Light Chlorophylls O_2 The major pigments for photosynthesis is xanthophyll chlorophyll a & b carotenoi…

Which one of the following is true about mutations? A mutation can sometimes res

Which one of the following is true about mutations? A mutation can sometimes result in a partially functional protein that still has some activity. All mutations are harmful. All …

Which one of the following is true about the genetic code? Question 1 options: I

Which one of the following is true about the genetic code? Question 1 options: It is absolutely identical in all living things. Several different codons may encode the same amino …

Which one of the following is true according to the graph? A) More people had 4

Which one of the following is true according to the graph? A) More people had 4 years of education beyond high school than 3 years. B) If the sample is truly representative, then …

Which one of the following option (s) would be a good explanation for why nonhom

Which one of the following option (s) would be a good explanation for why nonhomologous end joining (NHEJ) is more frequent in eukaryotes (compared to bacteria)? a. Bacteria repli…

Which one of the following phrases describes a way that Archaea differ from Bact

Which one of the following phrases describes a way that Archaea differ from Bacteria? The Archaea are all pathogenic, they cause human disease, but many Bacteria are not human pat…

Which one of the following purification techniques would most likely be used as

Which one of the following purification techniques would most likely be used as a step in the purification of a protein that will later be used for an activity assay? SDS-PAGE Ani…

Which one of the following statements CORRECTLY describes features shared by sim

Which one of the following statements CORRECTLY describes features shared by simple multicellular eukaryotes? Question 3 options: Cells adhere to one another, most of the cells ar…

Which one of the following statements about DNA structure is not true? a) The tw

Which one of the following statements about DNA structure is not true? a)  The two DNA strands are held together by covalent bonds between complementary bases. b)  DNA exists as a…

Which one of the following statements about carbon is correct? a. The hydrogen a

Which one of the following statements about carbon is correct? a. The hydrogen atoms linked to the two carbons of a carbon-carbon double bond can be on the same side of the carbon…

Which one of the following statements about cohort studies and case-control stud

Which one of the following statements about cohort studies and case-control studies is INCORRECT? For cohort studies, the odds ratio is the best measure of association, whereas in…

Which one of the following statements about cohort studies is FALSE? Cohort stud

Which one of the following statements about cohort studies is FALSE? Cohort studies may be either prospective or retrospective Study participants are grouped according to exposure…

Which one of the following statements about glucose oxidation (respiration) is i

Which one of the following statements about glucose oxidation (respiration) is incorrect? KEY for Q14 A Substrate phosphorylation occurs in glycolysis and the link reaction. B The…

Which one of the following statements about human population growth is FALSE? EX

Which one of the following statements about human population growth is FALSE? EXPLAIN WHY!    A. Countries with fast-growing populations have relatively more children than adults …

Which one of the following statements about lichens is false? lichens are resist

Which one of the following statements about lichens is false? lichens are resistant to pollution. Lichens can withstand severe drought. lichens are important pioneers on new land.…

Which one of the following statements about microorganisms and food is true? A)W

Which one of the following statements about microorganisms and food is true? A)Wines are usually produced with the aid of bacteria that occur naturally on the fruit. B) Cheese pro…

Which one of the following statements about microorganisms and food is true? Can

Which one of the following statements about microorganisms and food is true? Canned food does not spoil because the bacteria that cause spoilage require air to grow. Beef jerky do…

Which one of the following statements about mutation types is correct? a. Silent

Which one of the following statements about mutation types is correct? a. Silent mutations are changes in DNA sequence that alter the amino acid, and they do not change the biolog…

Which one of the following statements about resource acquisition by heterotrophs

Which one of the following statements about resource acquisition by heterotrophs is incorrect? a. the more specialized the heterotroph’s diet, the more narrow its choice of feedin…

Which one of the following statements about the evolution of speech is false? A.

Which one of the following statements about the evolution of speech is false? A. FOXP2 may be involved in songbird singing and mouse vocalization. B. The protein coded by the FOXP…

Which one of the following statements about the human circulatory system is most

Which one of the following statements about the human circulatory system is most likely to be false? a. If the opening of the left atrioventricular valve is narrowed (mitral steno…

Which one of the following statements about the human circulatory system is most

Which one of the following statements about the human circulatory system is most likely to be false? a. If the opening of the left atrioventricular valve is narrowed (mitral steno…

Which one of the following statements about the immune system is false? A. A vir

Which one of the following statements about the immune system is false? A. A virus causes immune deficiency by infecting macrophages. Cytotoxic T-cells whose receptors recognize t…

Which one of the following statements about the immune system is true ? Plasma c

Which one of the following statements about the immune system is true? Plasma cells secrete IgM molecules early, and then IgD molecules later. The major histocompatibility complex…

Which one of the following statements about the immune system is true ? is the a

Which one of the following statements about the immune system is true? is the answer C? Recombination of genes to produce functional B-cell receptors occurs immediately after expo…

Which one of the following statements best describes the pus that is found at th

Which one of the following statements best describes the pus that is found at the site of a wound? Pus is a fibrous network that “walls off” the site of injury from the rest of th…