Guanine and adenine, structure-wise, are purines.
Answer;
-The above statement is true
-It is a precaution during dissecting.
Explanation;
Among the precautions while dissecting include;
-When cutting into or dissecting the specimen, it is important to always cut away from yourself and others. To avoid cutting anyone, especially with formaldehyde being used. .
-You should also should not hold the animals while cutting because you could again, cut yourself. Another precaution that should be obvious is Do not eat any part of the specimen.
If the father had the gene BB (purebred & not carrying colourblind allele), then the answer will be a). All of their children will have normal vision with half of them carrying the colourblind allele.
If the father had the gene Bb (hydrid & carrying colourblind allele), then the answer will be d). 3/4 of their children would have normal vision whilst the last quarter would have colourblind males. This is due to them having to receive one colourblind allele from their mother on the X chromosome & one colourblind allele from their father on the Y chromosome.
Evolution connection happens when we act according to how we feel. Evolution explanation is based on reproductive fitness.
Using the example of "falling in love", evolution connection and evolution explanation is compatible with one another.
When we fall in love, we tend to give our best to our significant other. We invest emotions and time in keeping the relationship stronger which will ultimately lead to marriage and produce offspring.
Falling in love is part of evolution connection. Getting pregnant and giving birth to a child is part of evolution explanation as a result of a successful evolution connection.
