Biology and Genetics
101624 questions • Page 1784 / 2033
Why are people who have poor DNA repair mechanisms at greater risk for cancer de
Why are people who have poor DNA repair mechanisms at greater risk for cancer development? Select one: a. Their cancers are usually resistant to chemotherapy. b. They have sustain…
Why are physical geographers interested in globalization of the economy? Why is
Why are physical geographers interested in globalization of the economy? Why is a distance covered by 1 degree of longitude at the equator different from the distance covered by 1…
Why are physical geographers interested in globalization of the economy? Why is
Why are physical geographers interested in globalization of the economy? Why is a distance covered by 1 degree of longitude at the equator different from the distance covered by 1…
Why are quasars rare today? Today\'s black holes are too massive to be classifie
Why are quasars rare today? Today's black holes are too massive to be classified as quasars. There is so much dust today that it obscures quasar emission. Not enough matter is nea…
Why are recessive X-linked traits seen more often in human males than in human f
Why are recessive X-linked traits seen more often in human males than in human females? (Select all that apply.) Males have an X chromosome, but females do not. Actually, X-linked…
Why are recessive X-linked traits seen more often in human males than in human f
Why are recessive X-linked traits seen more often in human males than in human females? (Select all that apply.) Males have an X chromosome, but females do not. Actually, X-linked…
Why are seeds such a significant evolutionary innovation? (a) Describe a conifer
Why are seeds such a significant evolutionary innovation? (a) Describe a conifer pollen cone. Why is it a simple strobilus? (b) Describe a conifer seed cone. Why is it a compound …
Why are seeds such a significant evolutionary innovation? (a) Describe a conifer
Why are seeds such a significant evolutionary innovation? (a) Describe a conifer pollen cone. Why is it a simple strobilus? (b) Describe a conifer seed cone. Why is it a compound …
Why are some tissues damaged by diphtheria toxin while others are u affected by
Why are some tissues damaged by diphtheria toxin while others are u affected by it? 1. Diptheria toxin is a super antigen. Only Th cells are affected by this type of toxin, so tis…
Why are studies in health research important for advancements in the field of gl
Why are studies in health research important for advancements in the field of global health? How does research in global health contribute to the evidence-based public health appr…
Why are synonymous substitutions expected to be more common than non-synonymous
Why are synonymous substitutions expected to be more common than non-synonymous substitutions under the neutral theory? a. non synonymous mutations are eliminated by purifying sel…
Why are the \'sticky ends\' produced by restriction enzymes important to this pr
Why are the 'sticky ends' produced by restriction enzymes important to this process? Al1 of these are reasons why sticky ends are important to the process of cloning a gene. The s…
Why are the bonds between phosphate groups in ATP particularly strong? -Oxygens
Why are the bonds between phosphate groups in ATP particularly strong? -Oxygens on each of the phosphates are negatively charged, meaning they would attract and it would take more…
Why are the mass extinctions followed by a burst of speciation in the taxa that
Why are the mass extinctions followed by a burst of speciation in the taxa that survive? Name three types of key adaptations of early mammals that may have allowed them to survive…
Why are the mass extinctions followed by a burst of speciation in the taxa that
Why are the mass extinctions followed by a burst of speciation in the taxa that survive? Name three types of key adaptations of early mammals that may have allowed them to survive…
Why are the mutations K65R and D113E, both causing drug resistance such a surpri
Why are the mutations K65R and D113E, both causing drug resistance such a surprise, whereas, the mutations Q151M and Q151N are not such a surprise. Explain the reasoning behind th…
Why are the mutations K65R and D113E, both causing drug resistance such a surpri
Why are the mutations K65R and D113E, both causing drug resistance such a surprise, whereas, the mutations Q151M and Q151N are not such a surprise. Explain the reasoning behind th…
Why are the phosphorus, nitrogen, and carbon dioxide cycles a necessary part of
Why are the phosphorus, nitrogen, and carbon dioxide cycles a necessary part of life? There are (5) live pre-zygotic barriers (mechanisms) and three (3) post-zygotic barriers mech…
Why are the plates used in the skin microbiology experiment incubated at 37 °C?
Why are the plates used in the skin microbiology experiment incubated at 37 °C? a) The temperature of the human body is 37 °C and bacteria on our skin will grow well at body tempe…
Why are the spatial relations in the squid so confusing? when the animal swims o
Why are the spatial relations in the squid so confusing? when the animal swims one end goes forward first. why not call that anterior end instead of dorsal? Alternatively, the eye…
Why are the structural differences among amino-acid-derivative, polypeptide, and
Why are the structural differences among amino-acid-derivative, polypeptide, and steroid hormones significant? A. Steroids are liquid soluble and cross plasma membranes readily B.…
Why are the values of the free energy changes for the nearest neighbor interacti
Why are the values of the free energy changes for the nearest neighbor interactions in the stability matrix always negative? Select one: a. The addition of a basepair to a growing…
Why are there few spiral patterns seen in ultraviolet images of the clouds of Ve
Why are there few spiral patterns seen in ultraviolet images of the clouds of Venus. The rotation rate of Venus is very small The clouds are constantly rising and tailing The clou…
Why are there few spiral patterns seen in ultraviolet images of the clouds of ve
Why are there few spiral patterns seen in ultraviolet images of the clouds of venus? Why does venus appear featureless when viewed through a telescope? What are the clouds of Venu…
Why are there mice with patchy fur coloration during the creation of a knockout
Why are there mice with patchy fur coloration during the creation of a knockout mouse? Choose best answer and please include your reasoning. 1-They are females exhibiting function…
Why are there so many diff types of microscopes and ways of preparing samples? W
Why are there so many diff types of microscopes and ways of preparing samples? What would be the disadvantages/advantages to a particular technique and under what circumstances wo…
Why are three-point crosses used for mapping genes? What are their advantages ov
Why are three-point crosses used for mapping genes? What are their advantages over two-point crosses? Using example counts of progeny, describe in detail all the steps required to…
Why are two different species of bacteria used in the acid-fast stain procedure?
Why are two different species of bacteria used in the acid-fast stain procedure? Make a chart for the acid-fast stain that lists the primary stain, mordant, decolorizer, and count…
Why bend the patient’s knees before rolling into side lying? How could this tran
Why bend the patient’s knees before rolling into side lying? How could this transfer be safely performed if the patient has recently undergone a total hip arthroplasty with a post…
Why c&d are the correct answers? Which of the following work to support Koch\'s
Why c&d are the correct answers? Which of the following work to support Koch's Postulates? a. Serological tests showed that the sick individual produced antibodies against the…
Why can Benedict\'s solution not be used to distinguish between glucose and fruc
Why can Benedict's solution not be used to distinguish between glucose and fructose A. Fructose and glucose are both reducing sugars. Benedict’s solution distinguishes between red…
Why can an endocrine gland be a great distance from its target tissue or organ?
Why can an endocrine gland be a great distance from its target tissue or organ? Why do some people refer to the pituitary as the "master gland". and what part of the body controls…
Why can an endocrine gland be a great distance from its target tissue or organ?
Why can an endocrine gland be a great distance from its target tissue or organ? Why do some people refer to the pituitary as the "master gland". and what part of the body controls…
Why can bone marrow transplants be used to replace defective lymphocytes Why can
Why can bone marrow transplants be used to replace defective lymphocytes Why can bone marrow transplants be used to replace defective lymphocytes CLINICAL CASE STUDY: A Painful Ru…
Why can dialysis tubing be used to simulate diffusion through a selectively perm
Why can dialysis tubing be used to simulate diffusion through a selectively permeable membrane? In exercise 2A (Osmotic Behavior of Animal Cells) the question is:How will red bloo…
Why can peripheral membrane proteins be removed from the membrane fraction by tr
Why can peripheral membrane proteins be removed from the membrane fraction by treatment with high salt? The integral membrane proteins remain associated with the membrane fraction…
Why can peripheral membrane proteins be removed from the membrane fraction by tr
Why can peripheral membrane proteins be removed from the membrane fraction by treatment with high salt? Hint - what types of non-covalent interactions do you predict could be made…
Why can\'t hydrophobic chemical messengers be synthesized ahead of time? How are
Why can't hydrophobic chemical messengers be synthesized ahead of time? How are they released from the secretory cell? How are they transported in the blood? Where are their recep…
Why did Hodgkin and Huxley want to measure current instead of voltage? How does
Why did Hodgkin and Huxley want to measure current instead of voltage? How does the voltage clamp technique work? Why is it important? What types of current did Hodgkin and Huxley…
Why did Islam become the dominant faith of West Africa? West Africans felt that
Why did Islam become the dominant faith of West Africa? West Africans felt that Islam offered greater freedoms than Christianity did. Muslims dominated the trans-Saharan trade rou…
Why did Louis Pasteur use both a straight-neck and a swan-neck flask rather than
Why did Louis Pasteur use both a straight-neck and a swan-neck flask rather than an open flask and a closed flask? The swan-neck flask allowed the broth to be kept at a warmer tem…
Why did Luria and Delbruck interpret their fluctuation test results to indicate
Why did Luria and Delbruck interpret their fluctuation test results to indicate that mutations occur continually and by chance and not in response to a selective environment? Answ…
Why did Mendel continue some of his experiment to the F_2 or F_3 generation? A)
Why did Mendel continue some of his experiment to the F_2 or F_3 generation? A) to obtain a larger number of offspring on which to base statistics B) to observe whether or not a r…
Why did Noam Chomsky feel that Skinner\'s \"Operant Learning\" theory of languag
Why did Noam Chomsky feel that Skinner's "Operant Learning" theory of language development was wrong? Skinner was wrong about everything else, it would only be logical that he was…
Why did animal phyla appear so suddenly during the Cambrian explosion? Several v
Why did animal phyla appear so suddenly during the Cambrian explosion? Several variables have been hypothesized to play a role in the sudden appearance of diverse animals during t…
Why did animal phyla appear so suddenly during the Cambrian explosion? Several v
Why did animal phyla appear so suddenly during the Cambrian explosion? Several variables have been hypothesized to play a role in the sudden appearance of diverse animals during t…
Why did animal phyla appear so suddenly during the Cambrian explosion? Several v
Why did animal phyla appear so suddenly during the Cambrian explosion? Several variables have been hypothesized to play a role in the sudden appearance of diverse animals during t…
Why did animal phyla appear so suddenly during the Cambrian explosion? Several v
Why did animal phyla appear so suddenly during the Cambrian explosion? Several variables have been hypothesized to play a role in the sudden appearance of diverse animals during t…
Why did natural selection drive sporophyte to grow bigger and independent? In Ly
Why did natural selection drive sporophyte to grow bigger and independent? In Lycophytes, natural selection likely drove the sporophyte to become bigger (compared to Bryophytes) v…
Why did proglacial lakes travel slowly northward, following the retreating ice s
Why did proglacial lakes travel slowly northward, following the retreating ice sheets, during the last deglaciation? A.The migrating lakes were purely a reflection of the northwar…
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