Questions
4. What is the function of the E, P and A site during polypeptide elongation? 5....

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...

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.

In: Biology

How many chromosomes are in the genome of Dog ? Answer 39 Which Amino Acid is...

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....

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?

In: Biology

You are studying three linked genes in snapdragons. The flower color locus is in the center....

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

A young patient is brought to the doctor because of failure to thrive and is diagnosed...

A young patient is brought to the doctor because of failure to thrive and is diagnosed with lissencephaly. Disruption in what signals, involved in what process, would cause this diagnosis.

In: Biology

What is the name of the medium used in the Kirby-Bauer antimicrobial sensitivity test?

What is the name of the medium used in the Kirby-Bauer antimicrobial sensitivity test?

In: Biology

8. Epigenetic modifications to DNA sequences and resulting alterations in chromatin structure can be analyzed by...

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...

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...

‘Biosimilars and generics are not the same.’ Discuss this statement in detail and supplement your answer with relevant examples. [50]

In: Biology

How can we use the structures that are involved with photosynthesis and cellular respiration to determine...

How can we use the structures that are involved with photosynthesis and cellular respiration to determine the earliest forms of life and how they developed? Why is the study of endosymbiosos vital for biology?

In: Biology

a) what are the technologies or policies that are currently used to combat acid rain           ...

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,...

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

Cloning a DNA Fragment to a Bacterially-Derived Plasmid Vector” “Table 1: Fragment Lengths” DNA TYPE: LONGEST...

Cloning a DNA Fragment to a Bacterially-Derived Plasmid Vector”

“Table 1: Fragment Lengths”

DNA TYPE: LONGEST LENGTH

FOREIGN: 716
PLASMID: 2837




Post-Lab Questions


1. What is the expected size of the plasmid plus the cut foreign DNA?



2. What type of ends to the enzymes BamHI and EcoRI produce? How does this type of end facilitate cloning?




3. What enzyme is necessary to permanently link the digested foreign and plasmid DNA together to form the recombinant DNA molecule? How does this enzyme work?



4. How would you clone a gene into a plasmid if there were no common restriction sites between the two DNA sequences?


In: Biology

Time in years since the re-introduction of gray wolves to Yellowstone National Park (x) and total...

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