Biology and Genetics
101624 questions • Page 1712 / 2033
When is cervical mucus most abundant and easily penetrated by sperm during a wom
When is cervical mucus most abundant and easily penetrated by sperm during a woman's menstrual cycle? Select one: a. At the start of menstruation b. About a week after ovulation, …
When is it legitimate to ‘disclose’ private information about an older person in
When is it legitimate to ‘disclose’ private information about an older person in receipt of care? Why is it important to know the boundaries of your work role and responsibilities…
When is there not a “one to one correspond between genes and proteins?” Why are
When is there not a “one to one correspond between genes and proteins?” Why are males more vulnerable to genetic disorders than females? Which prenatal procedure is the least inva…
When it comes to communication, the obstacles are many. Two pearls of wisdom to
When it comes to communication, the obstacles are many. Two pearls of wisdom to think about when we converse; First, do you realize that every conversation we have is actually an …
When it comes to handedness in humans, there is a random recessive model. The mo
When it comes to handedness in humans, there is a random recessive model. The model days that homozogygotes with rr have the equal chance of being left or right handed where as th…
When it dissolves in water, Fe3(PO4)2 ionizes into 3Fe2+ and2(PO4)3-. Consider a
When it dissolves in water, Fe3(PO4)2 ionizes into 3Fe2+ and2(PO4)3-. Consider a large beaker in which 4.0M Ferrousphosphate is dissolved in at 25C. What is the molar concentratio…
When large quantities of blood are lost, erythrocytes must be replaced to restor
When large quantities of blood are lost, erythrocytes must be replaced to restore A. the body's ability to fight infection. B. thrombin levels. C. iron levels. D. oxygen-carrying …
When levels of blood calcium decrease, parathyroid hormone is released from the
When levels of blood calcium decrease, parathyroid hormone is released from the four nodular parathyroid glands located on the posterior thyroid. decrease reabsorption Parathyroid…
When levels of blood calcium decrease, parathyroid hormone is released from the
When levels of blood calcium decrease, parathyroid hormone is released from the four nodular parathyroid glands located on the posterior thyroid decrease reabsorption Parathyroid …
When levels of blood calcium decrease, parathyroid hormone is released from the
When levels of blood calcium decrease, parathyroid hormone is released from the four nodular parathyroid glands located on the posterior thyroid. decrease reabsorption Parathyroid…
When levels of blood calcium decrease, parathyroid hormone is released from the
When levels of blood calcium decrease, parathyroid hormone is released from the four nodular parathyroid glands located on the posterior thyroid decrease reabsorption Parathyroid …
When ligating your desired insert into the cloning vector, it is best to: a) hav
When ligating your desired insert into the cloning vector, it is best to: a) have more insert than vector in a blunt end ligation only to ensure that the insert is in the correct …
When light at a wavelength of 680 or 700nm alone are shined on a leaf a similar
When light at a wavelength of 680 or 700nm alone are shined on a leaf a similar amount of photosynthesis occurs. However, when both wavelengths are shined at the same time more th…
When light strikes a molecule of photopigment, the membrane potential undergoes
When light strikes a molecule of photopigment, the membrane potential undergoes a(n)______, which in turn _______. a. action potential; releases an excitatory transmitter onto the…
When light strikes chlorophyll of photosystem II, a molecule loses electrons to
When light strikes chlorophyll of photosystem II, a molecule loses electrons to an electron transport chain. What molecule donates electrons to chlorophyll so that chlorophyll doe…
When looking at a group on the periodic table, which of the following is true? t
When looking at a group on the periodic table, which of the following is true? the number of electrons increases from left to right the number of protons increases from left to ri…
When looking at the molecular structure of the transported molecule called, it i
When looking at the molecular structure of the transported molecule called, it is clear to see that each of them can transport 4 molecules of has 4: alpha globin chains Herne grou…
When m RNA produces a pro This is a) transcription b)translation c) an example o
When m RNA produces a pro This is a) transcription b)translation c) an example of the template theory d) nucleic di-inhibition response so Beadle and Tatum experiments with Neuros…
When making decisions about health care needs in a community that involve reduci
When making decisions about health care needs in a community that involve reducing health disparities, the nurse would collect which of the following data first? The number of hea…
When making models of feedback loops, biologists often use a box or oval to repr
When making models of feedback loops, biologists often use a box or oval to represent an endocrine gland. They then use different style arrows to represent hormones that glands se…
When male mice heterozygous for a small deletion on Chromosome 2 are mated to no
When male mice heterozygous for a small deletion on Chromosome 2 are mated to normal females, deletion-bearing offspring have thin bodies and are slow-moving, while non-deletion-b…
When more than two loci are investigated together (e.g., three-point testcross),
When more than two loci are investigated together (e.g., three-point testcross), a researcher can determine whether the genes being studied are linked, how far apart these genes a…
When most people are asked anything about the Hindu religion, generally they wil
When most people are asked anything about the Hindu religion, generally they will be able to label “karma” and “yoga.” How does the caste system tie into karma? In other words, wh…
When motor neurons are stimulated to trigger an action potential, this potential
When motor neurons are stimulated to trigger an action potential, this potential propagates down the spine, eventually reaching a neuromuscular junction, causing the release of ac…
When muscle proteins are catabolized in skeletal muscle during a fast, what are
When muscle proteins are catabolized in skeletal muscle during a fast, what are the fates of the glucogenic amino acids and other amino acids? Glucogenic amino acids are converted…
When muscles are at rest, Select one: O a. the thin and thick filaments are shor
When muscles are at rest, Select one: O a. the thin and thick filaments are shorter than in a contracted muscle. b. tropomyosin is situated on the myosin filament, preventing acti…
When muscles contract, -sarcomeres increase in length -actin breaks down ATP -th
When muscles contract, -sarcomeres increase in length -actin breaks down ATP -the m-line slides past actin -calcium is taken up by the sarcoplasmic reticulum (SR) …
When my long-haired ragdoll cat startles my barely domesticated short-haired kit
When my long-haired ragdoll cat startles my barely domesticated short-haired kitten, the kitten's tail puffs out and the fur on her back stands up all the way down her spine. The …
When neuron animations are displayed, there are frequently seen neurons, axons a
When neuron animations are displayed, there are frequently seen neurons, axons arranged in a lattice with a lot of empty space between. I'm interested if there is indeed empty spa…
When neurotransmitter binds to a receptor it opens an ion channel that has a rev
When neurotransmitter binds to a receptor it opens an ion channel that has a reversal potential of 0 mV. Assume a typical threshold for the action potential. Is this an excitatory…
When neurotransmitter binds to a receptor it opens an ion channel that has a rev
When neurotransmitter binds to a receptor it opens an ion channel that has a reversal potential of 0 mV. Assume a typical threshold for the action potential. Is this an excitatory…
When new genetic material enters a bacterial cell through conjugation, transform
When new genetic material enters a bacterial cell through conjugation, transformation, or transduction, a merodiploid cell can be formed. Does this happen with the V. cholerae bac…
When nicotinic receptors on the motor end plate are stimulated by acetylcholine,
When nicotinic receptors on the motor end plate are stimulated by acetylcholine, A) potassium ions enter the muscle cell from the terminal cisternae. B) sodium ions enter the musc…
When normal human fibroblasts are cultured in medium containing fetal bovine ser
When normal human fibroblasts are cultured in medium containing fetal bovine serum that contains growth factors, they divide with an average generation time of approximately 22 ho…
When oligomycin is added to an actively respiring muscle cell, ATP synthase is i
When oligomycin is added to an actively respiring muscle cell, ATP synthase is inhibited. Which of the following predicts the effect of oligomycin on the rate of oxygen usage and …
When oncogenes are activated by mutation we most often find that the mutation is
When oncogenes are activated by mutation we most often find that the mutation is a substitution while when tumor suppressor genes are mutated the common mutation is an insertion/d…
When oncogenes are activated by mutation we most often find that the mutation is
When oncogenes are activated by mutation we most often find that the mutation is a substitution while when tumor suppressor genes are mutated the common mutation is an insertion/d…
When oncogenes are activated by mutation we most often find that the mutation is
When oncogenes are activated by mutation we most often find that the mutation is a substitution while when tumor suppressor genes are mutated the common mutation is an insertion/d…
When one sperm nucleus fuses with the ovum and another sperm nucleus fuses with
When one sperm nucleus fuses with the ovum and another sperm nucleus fuses with two polar bodies this process is called _____. Triple fertilization Quadruple fertilization Fusion …
When one typical animal cell docs mitosis, the result is two haploid cells conta
When one typical animal cell docs mitosis, the result is two haploid cells containing exactly the same alleles four haploid cells, each containing somewhat different alleles two d…
When one typical animal cell does mitosis, the result is haploid cells containin
When one typical animal cell does mitosis, the result is haploid cells containing exactly the same alleles four haploid cells, each containing somewhat different alleles two diplo…
When one typical animal cell does mitosis, the result is two haploid cells conta
When one typical animal cell does mitosis, the result is two haploid cells containing exactly the same alleles four haploid cells, each containing somewhat different alleles two d…
When one typical animal cell does mitosis, the result is two haploid cells conta
When one typical animal cell does mitosis, the result is two haploid cells containing exactly the same alleles four haploid cells, each containing somewhat different alleles two d…
When one typical animal cell does mitosis, the result is two haploid cells conta
When one typical animal cell does mitosis, the result is two haploid cells containing exactly the same alleles four haploid cells, each containing somewhat different alleles two d…
When one works with parvoviruses, one notices that some particles have a positiv
When one works with parvoviruses, one notices that some particles have a positive DNA whereas others have a negative DNA. However all particles are equally infectious. What does i…
When oxytocin is released again from posterior pituitary gland in response to sm
When oxytocin is released again from posterior pituitary gland in response to smooth muscle contraction in the uterus, this is: A) negative feedback B) positive feedback C) double…
When parietal cells found in gastric pits are active... Select one: a. H + /K +
When parietal cells found in gastric pits are active... Select one: a. H+/K+ ATPases transport protons into the interstitial fluid b. Cytoplasmic carbonic anhydrase catalyzes the …
When part of the skin is exposed to great deal of friction, such as when part of
When part of the skin is exposed to great deal of friction, such as when part of your foot rubs against your shoe, a blister often forms. a blister is a collection of fluid that a…
When pathogenic fungi are found growing on the roots of grape vines, grape farme
When pathogenic fungi are found growing on the roots of grape vines, grape farmers sometimes respond by covering the ground around their vines with plastic sheeting and pumping a …
When people are faced with terminal illnesses and death, they usually need suppo
When people are faced with terminal illnesses and death, they usually need support and guidance to identify how they want to live the end of their life. The RN can play a vital ro…
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