4. What is the function of the E, P and A site during polypeptide elongation?
5. What are polyribosomes and why do they not exist in eukaryotes?
6. Not all single nucleotide changes affect the amino acid sequence of a protein. Why is this and what is this type of mutation called?
7. Insertion and deletions of single nucleotides cause a frameshift mutation. Explain what frameshift means in this context.
In: Biology
List 3 types of evidence scientists used to construct phylogenies?
How would you rank the above evidence?
What evidence do you think is best in terms of evolution? Explain why.
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How many chromosomes are in the genome of Dog ?
Answer 39
Which Amino Acid is translated from the codon CCU
Answer Pro
I know the answers. What I am asking is how can you tell me in detail how to solve it please its for bioinformatics.
In: Biology
Chickens carry out only brief bursts of flight and their flying muscles consist of white fibers. The breast muscles of ducks, by contrast, consist of red and intermediate type muscle fibers. What can you deduce about the flying ability of ducks?
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You are studying three linked genes in snapdragons. The flower color locus is in the center. There are 11.3 cM between the flower color locus and the plant height locus. There are 10.7 cM between the flower color locus and the leaf type locus. The coefficient of coincidence is 0.8. Pure-breeding tall, red-flowered plants with fuzzy leaves were crossed to pure-breeding dwarf, blue-flowered plants with smooth leaves. The F1 were testcrossed. Calculate the proportion of the testcross progeny that are expected to be dwarf with blue flowers. Round properly to 4 decimal digits.
In: Biology
In: Biology
In: Biology
8. Epigenetic modifications to DNA sequences and resulting alterations in chromatin structure can be analyzed by examining DNA methylation and histone modifications. To examine the methylation of a DNA sequence, you treat it with sodium bisulfite.
a. (2 points) If your original DNA sequence is: 5’-ACAGTCCGTCGGAGCCTGCCAGTCGATCGCACCT-3’ and your sequence after sodium bisulfite treatment reads: 5’-ACAGTTCGTCGGAGCTTGTTAGTCGATCGCACTT-3’, which positions on the original DNA sequence are methylated? (Indicate methylations by circling the methylated nucleotides.)
b. (2 points) Draw the double-stranded DNA sequence after this original sequence is replicated. Be sure to indicate all methylated nucleotides on the old strand and the new strand
by circling them.
c. (3 points) How does DNA methylation affect chromatin structure and what does this do to gene expression? Be specific.
d. (3 points) Describe how chromatin structure is altered in the process of X-inactivation and why the active X-chromosome is not inactivated. Include the functions of Jpx, Xist, Tsix, Xite, and describe what each of these gene products do. Be specific.
In: Biology
E. coli was inoculated into the Nutrient broth.
It entered the algebraic proliferator within two hours of
incubation, and entered a period of suspension from 20 hours of
incubation.
The cells in the incubation period of 4 hours and 8 hours were 106
cells/ml and 1012 cells/ml, respectively
What is E. coli's specific growth rate and generation time?
(However, ln 1 = 0, ln 10 = 2.3, ln 20 = 3.0)
- plz, Describe the process in detail
In: Biology
‘Biosimilars and generics are not the same.’ Discuss this statement in detail and supplement your answer with relevant examples. [50]
In: Biology
In: Biology
a) what are the technologies or policies that are currently used to combat acid rain
b) what are the new technologies or policies that could be used to further reduce the problem
c) what is the current threat of acid rain on the forests of the Eastern United S tates based on the information that you found in your search for policies
and technologies
In: Biology
CREATE THIS STUDY FOR ENTEROBIASIS
In your case study, provide an introduction to your patient-include name, age, social status.Describe the patient's medical history of the present illness and the chief presenting complaint(clinical presentation).Describe how you would diagnose this illness-what additional symptoms would you look for, what diagnostic tests you will do, your expected findings and the subsequent treatment and prognosis. Create a list of at least four other differential diagnoses. Once you have completed your case study,under your case-study text, describe the classification of the helminth associated with the assigned disease,describe the most common modes of transmission,life cycle,virulence factors,epidemiology,and prevention.
In: Biology
In: Biology
Time in years since the re-introduction of gray wolves to Yellowstone National Park (x) and total living biomass of willow plants along the high-risk Blacktail Creek (y).
a. |
Principles of inheritance – is a trait heritable? |
b. |
Life history tradeoffs |
c. |
Abiotic factors governing primary production |
d. |
Size-selective predation and/or predator-prey refugia |
e. |
Trophic cascades |
In: Biology