The promoter region in bacteria is called the -35 and -10 region.
True or False
In: Biology
In: Biology
What is the purpose of publishing in a scientific journal?
In: Biology
Discuss the biological efficiencies gained by organizing protein function on a membrane (hint: one critical point is the membrane serving as an interface between environments). Provide an example for each.
In: Biology
What is the difference between SDS-PAGE gel and Native gel and what do you use to visualize migrated proteins?
In: Biology
1.If approximately one in every 2500 white individuals in the united states is affected by the autosomal recessive disease cystic fibrosis, what are the frequencies of both the dominant and recessive alleles in the populations ?
If 14% of individuals in a population have the reseccive phenotype (aa), what percentage of the population is heterozygous ?
I need this answered with a legibale explanation step by step in a simple manner
In: Biology
Please read the two scnarious and answer the questions:
Scenario #1
Ten pea plant seeds were planted in each of 5 pots that contained
500g of “Peat’s Potting Soil.” The pots were given the following
amounts of distilled water each day: Pot 1, 50ml; Pot 2, 100ml; Pot
3, 150ml; Pot 4, 200ml; Pot 5, 250ml. According to the pea seed
package, the recommended of water for the pea plants was 150ml of
water daily. After 40 days, the height of each plant was measured
in centimeters.
Scenario #2
Sandy wanted to find out if the color of food would affect whether
or not kindergarten children would select it for lunch. She put
food coloring into 4 identical bowls of mashed potatoes. The colors
were red, green, yellow, blue. One bowl of mashed potatoes was left
as the regular white color. Each child was given the choice to
choose the bowl of mashed potatoes of the color of their choice.
Each day she recorded the choice of 100 different students. She did
this for five days.
Title:
Hypothesis:
Independent Variable (IV) :
Description Of Groups :
Repeated Number of Trials
Dependent Variable (DV): Control:
Constants: (minimum of 4)
Repeat or scenario 2
In: Biology
Please discuss about Corona virus what and what is the impact of this word on American culture? What about other cultures? Why is the history of corona virus important for us to understand? What can we gain from this knowledge? Has your research led you to believe this word will grow into something else? What will it grow into and why does that matter?
In: Biology
In: Biology
In: Biology
Why is it important to be aware of the differences between prokaryotic cells and eukaryotic cells when using prokaryotic models to study eukaryotic cellular processes or molecules?
In: Biology
You have discovered a new single-celled organism. Describe how you would classify it as Bacteria, Archaea, or Eukarya based on the genetics strand of cell biology. Your answer should be a couple sentences long and should include at least one tool or method you would use, the information that tool or method would provide, and what information you would expect to obtain if your organism belonged to each of the above domains.
In: Biology
DNA is continually damaged by exposure to chemical agents and ionising radiation. What are the effects of these agents on the DNA molecule? Choose one specific example and show how the damage caused might be repaired.
In: Biology
Describe the process of gene regulation using the diphtheria toxin gene. More correct, relevant detail is better.
In: Biology
Question 3.
Human haemoglobin is a complex protein molecule made up of four poly-peptides joined to an iron-containing haem group. In normal human adult haemoglobin, haemoglobin A, or HbA, two kinds of polypeptides designated as alpha and beta are found. Two identical alpha and two identical beta chains plus the haem group make up each molecule of haemoglobin A. Haemoglobin S, or HbS, is a haemoglobin variant occurring in individuals affected with the heritable disorder sickle cell anaemia. A comparison of the amino acid sequences of the polypeptides in haemoglobins A and S indicates that the alpha chains in the two molecules are identical, but that the beta chains differ in a single interior amino acid.
a. How many of genes are necessary for the synthesis of haemoglobin S in an adult who is homozygous for the S allele?
b. Assuming that the gene for the beta chain of HbS arose from the gene for the beta chain of HbA through a single mutation, what general type of mutation was most likely responsible?
c. The difference between the beta chains of haemoglobin S and A is restricted to the sixth amino acid from the amino (-NH2) end of the polypeptide. In haemoglobin S, the amino acid at the site is valine and in haemoglobin A it is glutamic acid. From your knowledge of the genetic code (and with reference to the genetic code) what can you deduce about the specific (and simplest) base alteration in the beta polypeptide that would produce the amino acid substitution?
In: Biology