Biology Answers

I have a strain of MG1655 E.coli. It has a Cm cassette inserted into my locus of interest via lambda red approach. How can this strain be used to generate a PCR fragment with a high chance of recombination with a CFT073 strain genome?

Describe health risk of pollutants in indoor dust in detail.

1- List the principal air pollutants and give the criteria set by EPA, TCEQ and WHO for these pollutants?

2- Describe health risk of pollutants in indoor dust in detail.

Calculate the degrees of freedom if 5 defined classes are being rested. Show your work.

Describe origin and phenotypic effect of the following structural chromosomal aberrations deletion, duplication, inversion, translocation.

Occasionally homologous chromosomes fail to separate during meiosis 1. Using a hypothetical example of an adult organism that has two pairs of chromosomes, describe the chromosomal makeup of the eggs that would result from this error in meiosis.

Plant Growth Substances stimulate root growth from a cut stem.
Describe an investigation to find the best concentration of plant growth substance to simulate root growth.
You should include experimental details in your answer and write in full sentences. (6 Marks)
*I am struggling with this question - please help!* Urgent

Explain why each parent has two of each chromosome. How do the chromosomes compare?

Compare the oxygen dissociation curves of haemoglobin and myoglobin.

Compare the tubes with 72 ml gluccose/100 MLS water. How many times greater was the growth of the yeast when the air was present?