Homework Answers
Slime molds are classified under the kingdom PROTISTA. Slime molds lack chitin in their cell wall which is present in fungi kingdom and these slime molds move by changing the shape, these slime molds are unicellular organsims and become multicellular under stress.
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Although slime molds were once classified as fungi, DNA analysis showed that they arose from different...
could somebody pleas help me with these 3 questions? thank you! 2. Research into the origins...
could somebody pleas help me with these 3 questions? thank
you!
2. Research into the origins of life on Earth is based on laboratory observations that mimic hypothesized conditions on early earth. Which of the following has not been observed in laboratory experiments? A. Spontaneous formation of amino acids, simple sugars, and nucleotides from abiotic components B. Reactions catalyzed by RNA molecules isolated from pre-existing cells C. Spontaneous formation self-replicating RNA molecules from abiotic components D. Spontaneous formation of membranes...
An analysis of equal volumes of water samples collected from different sources showed the following Water...
An analysis of equal volumes of water samples collected from different sources showed the following Water sample source Analysis Natural springs pure Sea water 0.30 M NaCl Lake water 0.11 M Na3PO4 Waste water treatment plant 0.60 M CaSO4 Which of the water samples will NaOH be least soluble in? Explain the choice of your answer.
Asate as the 1980's, all eukaryotes containine alla were classified within a phylum called Masophora a...
Asate as the 1980's, all eukaryotes containine alla were classified within a phylum called Masophora a contained such diverse forms as helena Val dinoflagellates, choanoflagelates, etc. Based upon the more modern classification found in your text, such a classification would be A) monophyletic B) paraphy letie C) polyphyletic Daphyletie Figure 2 A > DHE 12.) Uncommon occurrences can help us understand evolutionary events, as shown in figure 2 above. Which of the following statements explains the logic of this approach?...
Transcription is the process of rewriting DNA. DNA molecules are made from 4 different nucleotides which...
Transcription is the process of rewriting DNA. DNA molecules are made from 4 different nucleotides which acts as building blocks. These building blocks are adenine, thymine, guanine and cytosine. When put together in different chemical combinations they become directions for the functions of the cell molecules which are primarily proteins. When a certain protein is needed, the RNA polymerase enzyme will find the gene for that particular protein and makes an RNA copy of it. DNA and RNA have similar...
Mitochondria and chloroplasts were once free-living bacteria that later migrated into eukaryotic cells. Mitochondria make energy...
Mitochondria and chloroplasts were once free-living bacteria that later migrated into eukaryotic cells. Mitochondria make energy while chloroplasts prepare their own food. How can a mitochondrion live by itself? Explain your answer by mentioning the specific processes that this organelle performs. What does a chloroplast do to survive in its free living condition? What important chemicals does it need froma sorrounding primordial soup to prepare its own food? Apart from the process by which chloroplasts prepare their own food, what...
Until recently, there were two competing theories about the origin of our species- "modern Homo sapiens"....
Until recently, there were two competing theories about the
origin of our species- "modern Homo sapiens". The first (single
African origin) is that all modern humans descended from a recent
ancestor in Africa, less than 200,000 years ago, and that our
ancestors replaced the archaic human species they found in their
migrations, including Neanderthals and Denisovans. (In the last few
years evidence from nuclear genomes of fossil humans has indicated
that there was limited interbreeding between the ancestors of
modern...
Alternative Comparison-Different Lives Three different plans were presented to the GAO (General Accounting Office) by a...
Alternative Comparison-Different Lives Three different plans were presented to the GAO (General Accounting Office) by a high-tech facilities manager for operating a portable cyber-security facility. Plan A: Renewable 1-year contracts with payments of $1 million at the beginning of each year. Plan B: A 2-year contract that requires three payments of $600,000 each, with the first one to be made immediately and the second and third payment made at the beginning of the following two 6-month intervals; no payments required...
ld ts biovs Part II: Analysis of recursive algorithms is somewhat different from that of non-recursive...
ld ts biovs Part II: Analysis of recursive algorithms is somewhat different from that of non-recursive algorithms. We are very much interested in how many times the method gets called. The text refers to this as the number of activations. In inefficient algorithms, the number of calls to a method grows rapidly, in fact much worse than algorithms such as bubble sort. Consider the following: public static void foo ( int n ) { if n <=1 ow ura wor...
Although familial cases of narcolepsy have been reported, most human occurrences are sporadic, and the disorder...
Although familial cases of narcolepsy have been reported, most human occurrences are sporadic, and the disorder is generally believed to be multigenic and environmentally influenced (Honda and Matsuki, 1990; Mignot, 1998). In Doberman pinschers, the disorder is transmitted as a single autosomal recessive trait with full penetrance, canarc-1 (Foutz et al., 1979; Baker and Dement, 1985). To unravel the cause of this unique sleep disorder, we undertook the positional cloning of the canine narcolepsy gene. This project led us to...
3) Image from Biotechnology Explorer Kit, BIO RAD Analysis of DNA Fragments The data you entered...
3) Image from Biotechnology Explorer Kit, BIO RAD Analysis of DNA Fragments The data you entered for the lambda Hindill digest were the relative positions of DNA bands of known size. Since the exact size and position of these fragments are known, they can be used as standard reference points to estimate the size of unknown fragment bands. A set of fragments of known sizes is called a molecular weight ruler or standards or marker (or sometimes a ladder because...
could somebody pleas help me with these 3 questions? thank
you!
2. Research into the origins of life on Earth is based on laboratory observations that mimic hypothesized conditions on early earth. Which of the following has not been observed in laboratory experiments? A. Spontaneous formation of amino acids, simple sugars, and nucleotides from abiotic components B. Reactions catalyzed by RNA molecules isolated from pre-existing cells C. Spontaneous formation self-replicating RNA molecules from abiotic components D. Spontaneous formation of membranes...
Asate as the 1980's, all eukaryotes containine alla were classified within a phylum called Masophora a contained such diverse forms as helena Val dinoflagellates, choanoflagelates, etc. Based upon the more modern classification found in your text, such a classification would be A) monophyletic B) paraphy letie C) polyphyletic Daphyletie Figure 2 A > DHE 12.) Uncommon occurrences can help us understand evolutionary events, as shown in figure 2 above. Which of the following statements explains the logic of this approach?...
Until recently, there were two competing theories about the
origin of our species- "modern Homo sapiens". The first (single
African origin) is that all modern humans descended from a recent
ancestor in Africa, less than 200,000 years ago, and that our
ancestors replaced the archaic human species they found in their
migrations, including Neanderthals and Denisovans. (In the last few
years evidence from nuclear genomes of fossil humans has indicated
that there was limited interbreeding between the ancestors of
modern...
Alternative Comparison-Different Lives Three different plans were presented to the GAO (General Accounting Office) by a high-tech facilities manager for operating a portable cyber-security facility. Plan A: Renewable 1-year contracts with payments of $1 million at the beginning of each year. Plan B: A 2-year contract that requires three payments of $600,000 each, with the first one to be made immediately and the second and third payment made at the beginning of the following two 6-month intervals; no payments required...
ld ts biovs Part II: Analysis of recursive algorithms is somewhat different from that of non-recursive algorithms. We are very much interested in how many times the method gets called. The text refers to this as the number of activations. In inefficient algorithms, the number of calls to a method grows rapidly, in fact much worse than algorithms such as bubble sort. Consider the following: public static void foo ( int n ) { if n <=1 ow ura wor...
Although familial cases of narcolepsy have been reported, most human occurrences are sporadic, and the disorder is generally believed to be multigenic and environmentally influenced (Honda and Matsuki, 1990; Mignot, 1998). In Doberman pinschers, the disorder is transmitted as a single autosomal recessive trait with full penetrance, canarc-1 (Foutz et al., 1979; Baker and Dement, 1985). To unravel the cause of this unique sleep disorder, we undertook the positional cloning of the canine narcolepsy gene. This project led us to...
3) Image from Biotechnology Explorer Kit, BIO RAD Analysis of DNA Fragments The data you entered for the lambda Hindill digest were the relative positions of DNA bands of known size. Since the exact size and position of these fragments are known, they can be used as standard reference points to estimate the size of unknown fragment bands. A set of fragments of known sizes is called a molecular weight ruler or standards or marker (or sometimes a ladder because...
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