1.) It's best to have two pair of eyes for an experiment. Meaning one person to watch the chemicals while you're writing things down - especially if they're dangerous if mixed together. Basically it's best to take turns!
2.) They may have different results than you if you're in a lab - and it's always best to work together to get the job done! You can get the job done faster and more effectively if you work together! (:
I hope all is well, and you pass! Good luck, rockstar!
This is an organ that served a purpose in the distant ancestor of an organism, but is not longer pertinent in the presently existing, recently evolved, organisms.
Answer:
In sexually reproducing organisms, each parent contributes half of the genes acquired (at random) by the offspring. Individuals have two of each chromosome and hence two alleles of each gene, one acquired from each parent.
Explanation:
Answer:
<em>If the Tamiflu-resistance gene involves a cost, it will experience directional selection leading to reduction in its frequency.</em>
Explanation:
The new virus will be resistant to Tamiflu. The Tamiflu resistance gene will become common in the environment due to directional selection. Directional selection can be described as a condition in which one phenotype is favoured such that the phenotype becomes abundant in an area and hence the allele frequency of the area changes. This occurs because that phenotype is better adapted to survive in an environment.
