You make the following cross AaBb x aabb. A)TRANS,B)TRANSC) If the genes are completely…
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You make the following cross AaBb x aabb. A)TRANS,B)TRANSC) If the genes are completely Linked in what Phenotypic ratio would you observe amongst the progeny. If the genes are Linked in and 23 Map Units apart, what Phenotypic ratio would you observe amongst the progeny. If the genes behave according to Mendel, what Phenotypic ratio would you observe amongst the progeny. Report your answer in the following format for each part of the question: A) Wildtype 25%, Double Mutant 25%, “a” 25%, “b” 25%. B) Wildtype 25%, Double Mutant 25%, “a” 25%, “b” 25%. C) Wildtype 25%, Double Mutant 25%, “a” 25%, “b” 25%.
I am just not doing well in Animal Diversity. It’s confusing to me. Please answer what I have attached below.
I am just not doing well in Animal Diversity. It’s confusing to me. Please answer what I have attached below. For the pictures that are fill in the blank, I have typed them below with all of the possible answers. TY! It will be appreciated. Iam not submitting your answers as my own. looking for better understanding. There is no writing that needs to be done by the tutor on any of the questions. Just answer it. 1A) Green glands in crayfish are located in the ________________ (thorax, abdomen, head, tail) and their function is _________________ (circulation, excretion, digestion, respiration).1C)Study the micrograph shown below. It reveals the cross-sectional anatomy of Ascaris, a typical ________(earthworm, flatworm, roundworm, lancelet). The reproductive anatomy in this organism is particularly evident. Based on your studies, the following image shows a _________ (male, female) organism.1D)Your data should reveal a general relationship between symmetry and a) the number of tissue layers, and b) the organization of the nervous system. These relationships are important because they show that bilaterally symmetrical organisms tend to exhibit _______________ (2, 3, no) tissue layers and a higher degree of _____________ (gastrulation, segmentation, cephalization, locomotion).
How do older Americans (age 55 ) differ from today’s older Americans(55) in biologically, socialcultraly, and psychologically? and Give explanations
How do older Americans (age 55 ) differ from today’s older Americans(55) in biologically, socialcultraly, and psychologically? and Give explanations (age 55) How do older Americans (age 85 ) differ from today’s older Americans in biologically, socialcultraly, and psychologically? Give explanations (age 85) How do older Americans (age 70 ) differ from today’s older Americans in biologically, socialcultraly, and psychologically? Give Explanations (age 70)
1-Which of the following is NOTendosymbiotic theoryEndosymbiosis is true about the ? :Group of answer choicesa) supported by the presence
1-Which of the following is NOTendosymbiotic theoryEndosymbiosis is true about the ? :Group of answer choicesa) supported by the presence of certain membranous organelles that have their own bacteria-like DNA and a double membrane surrounding the organelle.b) supported by the presence of chloroplasts
8- Which of the following is true about Viruses, Bacteria, and/or Archaea?Group of answer choices a) Antibiotics are used to
Biology Assignment Writing Service8- Which of the following is true about Viruses, Bacteria, and/or Archaea?Group of answer choices a) Antibiotics are used to treat most viral infections.b) Bacteria may cause infection (be parasitic), be saprophytes (recycle matter through the Earth), or live in a mutual symbiotic relationship w/in us.c) Vaccines are used to treat most Archaea infections after you are sick.d) All Bacteria and Archaea are considered to be parasitic.e) There is no correct answer.9- Which of the following is true about time from the perspective of evolution? [Note: BYA = Billion Years Ago]Group of answer choicesa) Geologic time is the shortest, most recent (closest) time scale used, and is seen in everyday occurrences.b) Historic time is the oldest time scale, and deals with everything written as well as what is found in nature over vast amounts of time.c) The first prokaryotes are thought to have arisen more than 3.5 BYA, or a little over 1 BYs after the Earth’s formation.d) Lots of free oxygen is thought to have been present when the Earth was first formed, and was needed to initiate the creation of the first cells on Earth.e) Humans (or first hominids) were thought to have arisen about 2 BYA.10- Which of the following is NOT true about Protists? Protists:Group of answer choicesa) are all larger, eukaryotic cells that may be autotrophs or heterotrophs.b) are primarily single-celled, with membranous organelles (based on my description in lecture/lab notes).c) reproduce sexually, using primitive gametes (sperm/egg).d) typically require a moist, watery environment or are parasitic.e) evolved following the clustering (joining together) of certain Prokaryotes.11- Which of the following is most likely NOT true about the initial formation of organic molecules and the earliest cells to appear on primitive Earth over 3.5 billion years ago (BYA)? There is one obviously wrong answer, that we discussed during our ‘Zoom meeting’.Group of answer choicesa) Proto-cells have been grown in a lab under similar conditions to that of primitive Earth. Low in free oxygen and rich in small organic molecules.b) Most likely proto-cells were autotrophes, because plants are the most primitive organisms.c) RNA was probably the first form of genetic storage material, because it is more simple than DNA.d) Stanley Miller was the first to show that life (organic molecules) could evolve from non-living materials.e) On today’s Earth, “all life must come from pre-existing life” as described by Louis Pasteur.12- The theory and concept of plate tectonics:Group of answer choicesa) describe the movement of surface plates (above and below water) that move over the Earth’s mantle.b) have been found to cause earthquakes, volcanoes, and other seismic activity on Earth.c) have been used to support evolution, because the same fossils may be found on far away continents.d) is supported in part by measuring the Earth’s movement at mid-Atlantic Ridge.e) All of these are true.13- From book and notes: Which of the following is true about Darwin? Darwin:Group of answer choicesa) was the first to come up w/the idea of evolution.b) was the first to use the concept of natural selection to describe evolution.c) had no idea about evolution until he visited the Galapagos Islands.d) grew up with no religious understanding which is why he came up with his heathen (un-godly) theories.e) proposed that the age of the Earth is about 6000 years old and unchanging.14- Which of the following did NOT influence Darwin’s theory of evolution?Group of answer choicesa) Lyell’s Principles of Geology.b) Lamark’s proposal of how animals like giraffes evolved over time.c) Mendel’s papers on genetics.d) The economist Malthus’ papers on survival rates of the rich vs. poor.15- Which of the following is true about the phrase “Survival of the Fittest”? Survival of the Fittest:Group of answer choicesa) was first coined by Darwin himself.b) refers to organisms that are physically the most strong will always survive and reproduce.c) indicates that the number of offspring that ‘survive’ is not important, but that the strongest offspring must survive.d) states that organisms best fit to their environment will survive and produce similar viable offspring.e) All of these are true.
When designing primers, it is ideal to have a minimum GC content of 40%. What is the percent GC content
When designing primers, it is ideal to have a minimum GC content of 40%. What is the percent GC content for each of the primers designed in Data Table 4? Are the primers considered “ideal” in terms of GC content? Explain your answer.Primer 1 and 2 are primers (5′ to 3′ and 3′ to 5′) that covers the first 20 and last 18 nucleotides of the sequence.
Sea otters were near extinction from fur trading in 1600-1800’s. In 1911, the International Fur Seal Treaty banned the fur
Sea otters were near extinction from fur trading in 1600-1800’s. In 1911, the International Fur Seal Treaty banned the fur trade. By the late 1970’s the otters had a strong recovery. Then in the 1990’s, some populations declined by 90% in less than 10 years. Dr. James Estes, a marine ecologist with US Geological Survey, has been studying these otters for 30 years. He has tracked sea otters’ patterns of movement using tags and surgically implanted radio transmitters, and conducted regular counts.Changes in the relative abundance of sea otters at several locations in the Aleutian Islands,Alaska. (Redrawn from Estes et al., 1998.)Killer whales primarily eat sea lions and seals, but in 1991 the first observed attack of a sea otter by a killer whale occurred. There were 9 more attacks observed in the next 7 years. Dr. Estes set up an experiment to test his hypothesis: Increased predation by killer whales was the cause of the otter decline. He chose two adjacent locations which included sea otters. One of the bays, Clam Lagoon, did not have killer whales because they could not enter the lagoon because entrance is narrow and shallow. The second location, Kuluk Bay, did have killer whales present. Dr. Estes compared trends in the population size and survival rates of individually marked otters in both locations. Graph: Changes in sea otter population size over time at Clam Lagoon and Kuluk Bay, Adak Island, Alaska. Redrawn from Estes et al., 1998. (Kuluk whales present; Clam whales not present)What is the estimated carrying capacity for the Clam Lagoon otter population? 2.For the Kuluk Bay population, the carrying capacity is about 180.A) TrueB) False, carrying capacity is when a population is stable and we don’t have that information on this graph.C) False, 180 is over carrying capacity since it caused a population crash.D) False, carrying capacity for the Clam Lagoon population is ~100 and all populations of the same species must be the same so the Kuluk Bay population must be ~100 too.3.Based on the graph above, was Dr. Estes’ hypothesis supported? Yes or No Estimated numbers of Steller sea lions (all ages) in Alaska from 1956 to 2000 in two populations, Western stock and Eastern stock.4. Based upon the graph above, did the carrying capacity for the Western stock population change?A) No, carrying capacity cannot change.B) No, it is unrelated to the events described in this case study.C) Yes, it based upon available resources which decreased for the sea lions after 1980.D) Yes, it increased since it is a proportion of the population total.5. As environmental resistance changes, does biotic potential change?A) No, because it is based upon ideal conditions.B) No, because it the same rate for all species in all conditions.C) Yes, because it is the rate at which reproduction is possible under the current conditions.6. What is the relationship between environmental resistance, carrying capacity and biotic potential?
If the connection between the sinoatrial node and the atrioventricular node becomes blocked, the ventricular beat increasesdecreasesremains the samebecomes erratic
If the connection between the sinoatrial node and the atrioventricular node becomes blocked, the ventricular beat increasesdecreasesremains the samebecomes erratic The normal pacemaker of the heart located in thePurkinje fiberssinoatrial nodeatrioventricular nodewall of the left ventricleThe neurons of the cardiovascular center that control heart rate are located in theponsthalamushypothalamusmedulla oblongataWhat is the purpose of drugs that block the beta-one adrenergic receptors?To decrease heart rateTo decrease the end-systolic volumeTo increase cardiac outputTo increase contractility
Let’s return to Mal the Temom bird. Mal has two versions of the beak pigment colour gene, he also has
Let’s return to Mal the Temom bird. Mal has two versions of the beak pigment colour gene, he also has two versions of the beak size gene (S). His genotype can be given as CGCRSLST.Genes C and S are on different chromosomes so they sort independently. That means as the chromosomes move around in meiosis, and into daughter cells, the movement of the chromosomes with C does not impact the chromosomes with S.When genes sort independently then the probability of inheritance of one is independent from the other. It is similar to the two heads in a row example from before.What is the probability one of Mal’s sperm cell will have CGSL?The probability of having a daughter cell with CG after meiosis is 1/2.The probability of having a daughter cell with SL after meiosis is 1/2.If the sperm cell is CGSL then two independent events must have occurred together, and since the genes are sorting independently we can multiply the probability of each event. For the sperm to be CGSL it must have received CG during meiosis (probability = 1/2) AND SL during meiosis (probability = 1/2). 1/2 X 1/2 = 1/4. The probability of a Mal’s sperm cell being CGSL is 1/4. The movement of chromosomes during meiosis leads to independent assortment. Genes on different chromosomes are inherited independently. I can therefore use the product rule to determine the probability of allele combinations occurring in the gametes.What about the offspring of two parents; how can we determine the probability a child has a certain genotype (combination of alleles)?A sperm with the CG allele is no more or less likely to fuse with an egg that has CG than CR. The version of a gene (allele) an organism gets from the sperm that made them has no impact on which allele they got from the egg that made them. In other words, paternal (sperm) and maternal (egg) inheritance of alleles are independent probabilities. Let’s go back to just the pigment gene. Mal was CGCR. If Mal mates with a female that is CGCR what is the probability their child will be CGCG? (1 mark)Hint: what is the probability that Mal’s sperm will have CG? what is the probability that the female’s eggs will have CG? Which egg and sperm combination will make the genotype we’re looking for (CGCG)Select one:a. 1b. 1/2c. 1/4d. 0
What is the difference between Braxton Hicks and true contractions? 2. What are the signs/symptoms of Molar Pregnancy? 3. How
What is the difference between Braxton Hicks and true contractions? 2. What are the signs/symptoms of Molar Pregnancy? 3. How do we assess for toxicity of Magnesium Sulfate? What is the antidote? 4. How does Listeria Monocytogens affect pregnancy? 5. What should be done if a nonstress test result is nonreactive after being assessed for a period of 20 minutes? 6. How is Diabetes managed during pregnancy? 7. What are the interventions for DIC on a pregnant woman?
1: Imagine that one type of virus specifically infects bacterial cells. How does the size of a virus compare to
1: Imagine that one type of virus specifically infects bacterial cells. How does the size of a virus compare to that of a bacterial cell? How could the process of centrifugation help you to observe viruses separate from the cells that they infected? In your your answer, indicate where in the tube you would find bacterial cells and where you would find viruses.
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