Compare and conntrast negative feedback control of an enzyme versus enzyme repression.

Draw a simple diagram and include detailed labels that shows: the two ways that meiosis creates genetic diversity (crossing over and independent assortment)

• You should draw chromosomes (complete with chromosome # and maternal/paternal symbol), and you might label them with different alleles.
• You will need two drawings each accompanied by a few sentences worth of text.

You derive a cell line from a tumour and discover that it is deficient in DNA helicase activity and DNA repair activity. Is this helicase deficiency likely to affect base excision or nucleotide excision repair? Explain your reasoning.

Compare and contrast the accuracy of:

1. DNA replication
2. RNA synthesis
3. Protein synthesis

What mechanisms are used to ensure the fidelity of each of these processes? in writing no diagrams or pictures

Initiation of protein synthesis in prokaryotes and eukaryotes is basically similar but there are some significant differences. Briefly discuss four differences in the processes of initiation of protein synthesis between prokaryotes and eukaryotes

What is the correct order of the steps regarding speciation?

Group of answer choices

a. geographic isolation->one species->reproductive isolation->divergent evolution->two species

b. reproductive isolation->one species->reproductive isolation->two species

c. two species->geographic isolation->one species->reproductive->isolation->divergent evolution

d. one species->geographic isolation->divergent evolution->reproductive isolation->two species

Compare and contrast the way a liver cell responds to the ingestion of a common antibiotic and the ingestion of the dioxin TCDD (2,3,7,8-tetrachlorodibenzo-p-dioxin) and explain why the dioxin is so toxic. in writing no diagrams

Telomerase carries around its own piece of RNA. Explain why this piece of RNA is important and what it is used for.

Explain what would happen during DNA replication if both DNA Pol I and DNA Pol III had high processivity. in writing no diagrams or pictures

how to look for genetic patterns in a pedigree

1. Following an infection (or injury) in some tissue, __1__ are released by cells, which triggers a(n) __2__.

One result is the recruitment of __3__, which is part of __4__.

These cells engulf the __5__ in a __6__.

This structure then fuses with a __7__ forming a complex structure called a __8__.

Inside, the pathogen is __9__ and the remnants are expulsed as __10__.

Some of the cells performing this task are __11__, which hold on to some pathogen remnants with its __12__ protein.

Words: Inflammatory response, Phagolysome, Phagsome, Antigen, Cytokinese, Innate immunity, Digested and destroyed, Phagocytic cells, MIH ll, APCs, Lysosome, pathogen

2.

Which of the following is FALSE?

Select one:

a. Innate immune barriers include things like skin and stomach acid.

b. Inflammation is an immune response that essentially increases blood flow to a wounded or infected area.

c. Antibodies bind to specific pathogens.

d. Lymphocytes make up the majority of the innate immune system cells.

What is the causative agent of herpes simplex and where are the common places that it is encountered at?

Recall the steps involved in phagocytosis. Now, speculate on the consequenses if an organism had the ability to evade phagocytosis.

Please answer thoroughly

Step 1 – Define and compare the terms species, population and ecosystem.

Step 2– Give typical examples (cases) of the terms you have defined above.

Step 3-Show the relationship between the above terms.

Nematoda: Unsegmented round worms, longitudinal muscle and distinctive form of locomotion, alimentary canal. How can these survive without circulatory or gas exchange systems? How does this concept relate to their size, shape, and habitat?

Define how the terms are related to Nemotoda, and answer the question succinctly, but fully.