Natural History

 Algal Life Histories (25 points). Discuss the life histories of unicellular and multicellular algae. Include in your answer the unicellular alga Chlamydomonas, and the three multicellular algae: the green alga, Ulva, the red alga, Polysiphonia, and the brown alga, Fucus. Using your choices of examples from these organisms, include in your discussion:

a. the sequence of stages in the life histories of algae

b. a description of the alternation of haploid and diploid generations,

c. the benefits of haploid and diploid generations under different conditions; under what conditions is it better to be haploid? Under what conditions diploid?

The Complement System – A Multi-Functional Molecular Network & The Expression of Lymphocyte Antigen Receptor Genes

Writing Prompt 1: Describe how the three pathways of complement are activated and the biological functions associated with the pathways. In your answer, highlight the characteristics that the three pathways have in common, and how they differ. Writing Prompt 2: Describe in detail the processes involved in the generation of the antigen-binding region of the B cell receptor through recombination.

Topic of your paper: Target Cell Uptake

Topic of your paper: Target Cell Uptake
Subject: Biology
Steroidal lipid-soluble hormones are carried around in the blood by plasma-binding proteins. Then, when the plasma-binding protein complex encounters (target) tissue, the hormone generically diffuses through the cell membrane. Referring to the paper by Willnow and Nykjaer (2010), explain how the target cell actually takes up the hormone. Be sure that you discuss specific hormone examples discussed by the authors. Take up no more than ½ typed page to formulate your response.

A Term Paper on Protein Purification

Write a term paper on protein purification

Protein purification is a series of processes intended to isolate one or a few proteins from a complex mixture, usually cells, tissues or whole organisms. Protein purification is vital for the.. to receive the full answer CLICK ORDER NOW

BIOLOGY- Restriction Enzymes

Which of the following two restriction enzymes produce the same single-stranded sticky ends?

SfiI and DdeI
EcoRI and PacI
HindIII and SacI
ApaI and XmaI
TspEI and ApoI


Obesity is an increasing trend in America. Studies tie obesity in both men and women with infertility. In women, obesity increases the levels of estrogen. How might these higher levels of estrogen affect the female reproductive system

Culture Media

Explain briefly the following culture media: a)Nutrient media/complex media b)Synthetic media c)Selective media D) defined media E) Enriched media F) liquid media G) slant (solid)