Chemical 2 Chemical 6 1 0.357 0.392 2 0.576 0.395 3 0.334 0.385 4 0.197 0.399 5 0.334 0.403 Average SD Calculate the Coefficient of Variance (see the appendix) for the readings of each chemical: Evaluate the precision of each and state which one is more precise:
Genetic Recombination
Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.
Microbial Genetics
Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.
In an experiment to investigate membrane integrity, beet root sections were subjected to different chemicals. Membrane damage was estimated by the color intensity of leaked pigment. Five replicates of each treatment were prepared.
- Complete the following table with the absorbance values. Calculate the mean (average) and the standard
Table 1: Absorbance readings of pigment leaked from damaged cells treated with two different chemicals.
|
Replicate # |
Absorbance at 460 nm |
|
|
Chemical 2 |
Chemical 6 |
|
|
1 |
0.357 |
0.392 |
|
2 |
0.576 |
0.395 |
|
3 |
0.334 |
0.385 |
|
4 |
0.197 |
0.399 |
|
5 |
0.334 |
0.403 |
|
Average |
|
|
|
SD |
|
|
- Calculate the Coefficient of Variance (see the appendix) for the readings of each chemical:
- Evaluate the precision of each and state which one is more precise:
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