What is meant by "nonlinearity in the biodiversity-disease relationship"
In: Biology
Why was Koch’s selection of ANTHAX key (i.e. how would choosing a different microbe not have worked out)? Provide as many sophisticated scientific, technological reasons, and/or examples as you can using ideas from ALL units of microbiology. Use Koch's postulates as reasoning.
In: Biology
Which statement is NOT true about the repressor protein, in regard to the lac operon:
Group of answer choices
it blocks transcription when it is bound to the operator
is only expressed when glucose is present
it changes its three-dimensional shape (conformation) when it is bound to the inducer, allolactose
All listed ARE true about the repressor
binds to the operator region of the lac operon when glucose is being utilized
In: Biology
Which of the following is true of nanometer a a nanometer is about the size of a common bacterial cell b cells come in a wide variety of sizes and shapes b the nanometer is the most common measurement used in measuring the whole cel, c a nanometer is equivalent to 10 A d a nanometer is one millionth of a meter e none of the above
In: Biology
is coronavirus a Political issue? why or why not?answer in 2 paragraphs
In: Biology
What type of kin naming system is used by Aztec group?( Hawaiian, Eskimo, Crow, Sudanese, Omaha and Iroquois)
In: Biology
Electrons in the ETC move from:
A. Complex I to Complex II to Complex IIII to Complex IV
B. Complex I to Complex III to Complex IV
C. Complex II to Complex III to Complex IV to the ATP Synthase
D. Complex I, Complex II, Complex III and Complex IV to the ATP Synthase
In: Biology
There are three varieties of banana.
Variety A:
Number of chromosomes in a leaf cell = 22
Growth rate of fruit = 2.9
Breaking strength of leaf = 10.8
Variety B:
Number of chromosomes in a leaf cell = 33
Growth rate of fruit = 6.9
Breaking strength of leaf = 9.4
Variety C:
Number of chromosomes in a leaf cell = 44
Growth rate of fruit = 7.2
Breaking strength of leaf = 7.8
In some countries very strong winds may occur. Banana growers in countries where very strong winds occur choose to grow variety B.
a) Explain why banana growers in these countries choose to grow variety B rather than variety A.
b) Explain why banana growers in these countries choose to grow variety B rather than variety C.
In: Biology
What is a gene and how does the enzyme that catalyzes transcription find the start of the gene?
What is the DNA chain/thread read in the transcript?
Do the eukaryotes also have only one enzyme that catalyzes the transcription of RNA?
How are the eukaryotic primary mRNA transcripts processed before they can be transported from the cell nucleus to the ribosomes in the cytosol?
In: Biology
Question 6 Part a:
Which of the following are examples of genetic drift?
A) founder effect
B) natural selection
C) bottleneck effect
D) migration
Group of answer choices
A. Both A) and B) are examples of genetic drift
B. both B) and D) are examples of genetic drift
C. Both A) and C) are examples of genetic drift
D. all of these are examples of genetic drift
________________________________________________________________________________
Question 6 Part b:
Which of the following causes changes to populations that are beneficial?
A) founder effect
B) natural selection
C) sexual selection
D) migration
Group of answer choices
A. Both A) and C) are examples of genetic drift
B. both C) and D) are examples of genetic drift
C. Both A) and B) are examples of genetic drift
D. B) and C) causes changes that are beneficial
E. all of these are things that cause beneficial traits
In: Biology
method of collection for this specimen.
Respiratory track lower
Respiratory track upper
urine(two method)
In: Biology
Discuss the 3 pathways of ethanol metabolism
In: Biology
Discuss the 3 pathways of ethanol metabolism.
In: Biology
Discuss anti-epileptic drugs with respect to developmental toxicology.
In: Biology
Each year in the US, millions of people become ill and thousands die from eating food contaminated with bacteria. Controlling growth of microorganisms on food is a particular challenge, and over the course of many centuries various methods have been developed for controlling microorganisms in food. Some of these include preservation by irradiation, drying, freezing, canning, and salting. Preservation by salting is based on the principles of osmosis. One example of this is the preservation of ham by applying large amounts of salt (“salt-cured”) or sugar (“sugar-cured”) to the meat within 48 hours after slaughter. Using information you learned in this lab, speculate about how this process works to preserve ham.
In: Biology